Things to Do in Boulder in September

by Rachel Daly
Published: Last Updated on
september in boulder

There are so many things to do in Boulder in September! Fall festival season begins and live outdoor music continues. One of our favorite art events of the year, the Street Wise Boulder Mural Festival, is back! There is something for everyone: comedy shows, forest bathing, farmers markets, Pearl Street Stampedes, Oktoberfests and more. All happening in and around Boulder in September 2021.

Growing Gardens Farm Stand

Things to do in Boulder in September
Photo Courtesy Growing Gardens

When: Wednesdays throughout September & October from 3:30 PM – 6:30 PM

Join Growing Gardens every Wednesday at the Farm Stand! There will be a variety of items for sale from beautiful organically grown produce from our farm to tasty good for our local purveyors. More information here.

Forest Bathing with Boulder Open Space & Mountain Parks

Photo Courtesy Boulder Public Library

When: September 1, 2021 from 4 – 6:30 PM

Deepening human connection to nature is a fundamental part of combatting the climate crisis. In addition, self-care becomes increasingly important as more people face climate anxiety. Through this program, Boulder Open Space and Mountain Parks aims to both deepen connection and de-stress. Slow down and immerse yourself in nature through the Japanese practice of shinrin-yoku, or forest bathing. This mindful wander, in partnership with Open Space & Mountain Parks, is designed to open up the senses to connect with nature in a deeper way. Ages 12 +. The program will take place on Flagstaff Mountain. More details will be emailed to registered participants. Register here. Access the many formats of the All We Can Save in our online catalog. One Book, One Boulder is generously sponsored by the Boulder Library Foundation. Another free event on our list of things to do in Boulder in September!

Rodrigo Y Gabriela with David Keenan at Colorado Chautauqua

Photo Courtesy Colorado Chautauqua

When: Wednesday, September 1, 2021 at 7:30 PM

With career album sales now in excess of 1.5 million worldwide, Mexican acoustic-rock duo Rodrigo y Gabriela won the GRAMMY® for Best Contemporary Instrumental Album at the 2019 62nd GRAMMY® Awards ceremony. The award was given for Rodrigo y Gabriela’s most-recent album METTAVOLUTION, their 6th studio album and first in five years. The award is just one of the recent career highlights for Rodrigo y Gabriela, who have undoubtedly established themselves as the planet’s preeminent acoustic guitar duo, earning international acclaim and a fervent fan following with their awe-inspiring mastery of their instruments as well as a truly distinctive approach to melody, energy, and rhythm. Tickets $55+, available here.

Pearl Street Stampede

Photo Courtesy Downtown Boulder

When: September 2 & 17, October 1 & 15, November 5 & 19, 2021 at 7 PM

The Pearl Street Stampedes have become the kickoff celebration for CU home football games for over a decade. The night before each home game, hundreds of Buffs fans line the Pearl Street Mall as members of the Golden Buffalo Marching Band plays to the crowds’ delight.  Members of the CU football team and coaching staff are greeted with cheers and high fives from fans of all ages.   The Stampedes are a joint collaboration between the University of Colorado, local businesses, the City of Boulder and Downtown Boulder. Led by Stephen Tebo’s vintage 1948 fire truck, members of the Golden Buffalo Marching Band start performing at 7 p.m. on the 1300 block of Pearl Street (in front of the County Courthouse).  The Stampedes moves west, stopping on each block of the Pearl Street Mall To perform. More info here.

Louisville Art Association’s 2021 Fine Art Show

Things to do in Boulder in September
Photo Courtesy Louisville Art Association

When: September 3 – 12, 2021

The 2021 National Fine Arts Show and Sale takes place in Louisville, Colorado, a beautiful historic city on Colorado’s Front Range. The venue is the Louisville Center for the Arts, an elegant, late 19th century, red brick schoolhouse. Historic Downtown Louisville offers an array of art galleries, related shops, businesses, restaurants and cafes. This event will be held at the Louisville Center for the Arts, 801 Grant Ave, Louisville CO.

Dancing Diasporas (FREE Outdoor Dance Classes)

Photo Courtesy Diasporic Artists Collective

When: Friday, September 3, 2021 from 5:30 – 7 PM

Join the Diasporic Artists Collective for a free outdoor summer dance series featuring Afrofusion, Bollywood Fusion, and Middle Eastern dance classes! Classes will be taught by our rotating instructors: Brittney Banaei, Constance Harris, and Kshitija Saturdekar. More info here. Another free event on our list of things to do in Boulder in September!

Amos Lee with Mutlu at Colorado Chautauqua

Photo Courtesy Colorado Chautauqua

When: September 3 & 4, 2021

With MY NEW MOON, his seventh album, Amos Lee reaches into experiences of hope, hopelessness, loss, and renewal. The result is the most wide-ranging musical effort of his career, a set of songs that examines issues of mortality, survival, connection, and celebration in ways that are both deeply personal and profoundly universal. Amos Lee will be playing two nights at Colorado Chautauqua. More info here.

NoBo First Friday

things to do in Boulder in September
Photo Courtesy NoBo Art District

When: September 3, 2021 from 6 PM – 9 PM

NoBo First Friday is a FREE self-guided tour of artists’ studios and creative businesses in the NoBo Art District. Meet painters, sculptors, photographers, designers and other artists along your stroll through the area. Featuring live music, demos and special activities in many locations. Located along Broadway from Pine Street to Highway 36. Follow the colorful flags to find surprises around every corner. First Friday runs from 6:00 to 9:00 pm on the first Friday of the month. Please be respectful of COVID precautions, wear a mask and keep your distance. Please note that many locations have other opening and closing times, see the map or list to check exact times. Details at Another free event on our list of things to do in Boulder in September!

Boulder Creek Hometown Festival

Photo Courtesy Boulder Creek Events

When: September 4 – 6, 2021, full schedule here.

The Boulder Creek Hometown Festival is the perfect bookend to close out the summer event season. This event features arts & crafts exhibitors in Central Park, live performances at the Bandshell, the Hometown Fest 5K, a Classic Car & Motorcycle Show,  a food court & beer garden, and much more. We are so excited that the Boulder Creek Hometown Festival is back this Labor Day weekend! The festival will be held along the Boulder Creek corridor, extending from Broadway to 14th Street (west to east), between Canyon Blvd. and Arapahoe Ave. (north and south). The festival, one of our personal favorite things to do in Boulder in September, is FREE.

Colorado Native: A Native American Comedy Showcase II

Things to do in Boulder in September

When: September 4, 2021 at 7 PM

Creative Nations along with the Dairy Arts Center present their second installment of Colorado Native: A Native American Comedy Showcase. Host Joshua Emerson comes at you with another stellar lineup of Native comics that includes support from Wolf Brown, George Delgado, Geoff Tice and Shishona Livingston. ShaNae Ross will be headlining the show. Originally from Oklahoma, she is now based in Denver, where she was a finalist in the Comedy Works New Faces contest in 2018. Ross says about her comedy “I’m a storyteller but I do provide my observations through things or just how I see them,” she said. “My comedy is very odd, but it’s very me.” Tickets available here.

Street Wise Art-ivism Mural Festival

Photo Courtesy Street Wise Boulder

When: September 5 – 12, 2021

Street Wise Boulder ARTivism Mural Festival is back to the streets of Boulder in 2021. Street Wise Boulder is a non profit designed to amplify artist voices and use the power of art as a means to connect, spark change, and build empathy within the community. Check out the 2021 Mural Artists here! 30+ incredible artists will be working all week long to give Boulder new visions for a rad future. As the murals go up, you are invited to (respectfully) watch the artists do their work, and see all the murals in their complexities and beauty. As you embark upon a self-guided, and self-paced walking or biking tour of the murals, you will be able to use QR codes to learn more about the artists and stories behind the art. Mural tour maps will be available on the website soon. Another free event on our list of things to do in Boulder in September!

85th Annual Louisville Labor Day Parade

Photo Courtesy City of Louisville

When: Monday, September 6, 2021 at 10 AM

The City of Louisville is excited to announce that the annual Labor Day Parade will take place this year with the theme ‘Friends and Neighbors’. Due to the temporary closure of Main Street to support downtown dining, the parade route will run along Pine Street, starting at Via Appia and ending at Hoover Avenue. The Children’s Pet Parade and Fall Festival in Memory Square Park will not take place this year. More details here. Another free event on our list of things to do in Boulder in September!

Boulder Symphony Presents Seasons

When: Friday, September 10, 2021 at 7:30 PM

Simplicity and beauty are on display with Max Richter’s Four Seasons reshuffled and remixed for 2021. Britten’s Simple Symphony is a child’s imagination and recreation of the fun and ingenuity that a symphony can become. Max Richter’s Four Seasons Recomposed features, CU Violin Professor, Charles Wetherbee. Tickets $25/Adults, $5/Kids, available here.

Longmont Fall Home Show

Things to do in Boulder in September

When: Friday, September 10 – 12, 2021

The Longmont Fall Home Show is coming back at the Boulder County Fairgrounds. Just in time to finish up your home improvement projects before the end of the season! See the latest in home improvement, remodeling, design, outdoor living and more. Meet with local and national vendors that can help you tackle any size project! For more information visit: Another free event on our list of things to do in Boulder in September!

Downtown Boulder Fall Fest & Firefly Handmade Market

Photo Courtesy Firefly Handmade

When: September 10 – 12, 2021, for the full schedule click here.

Downtown Boulder’s Fall Fest is one of Boulder’s most beloved community celebrations. This 3-day autumn festival features food, brews and music with the added excitement of children’s activitiesFirefly Handmade Markets will be there, featuring carefully and creatively curated to feature returning favorite and emerging artisans with home goods & décor; jewelry & accessories; adult & children’s fashion; skin care; ceramics; art; artisanal food; paper goods; and more. Free parking Saturday and Sunday in the City of Boulder Parking Garages. Fall Fest is held on the Pearl Street Mall. Another free event on our list of things to do in Boulder in September!

Open Studio at Boulder Public Library’s Markerspace

Sewing Rebellion, Photo All Things Boulder

When: Every Tuesday & Wednesday from 1 PM – 7 PM

Boulder Public Library and Building 61 offer Open Studio every week, giving free access to: 3D Printers, Sewing Machines, Electronics bench, Design Laptops, Vinyl Cutter, Screen Printing Equipment and more are available for use at this time. More info here. Another free event on our list of things to do in Boulder in September!

Longs Peak Scottish-Irish Highland Festival

Photo Courtesy Longs Peak Scottish-Irish Highland Festival

When: September 10 & 11, 2021, full schedule here.

Celebrate your Scottish or Irish heritage by participating in the Long’s Peak Scottish-Irish Highland Festival in Estes Park, Colorado! The festival features athletic games and pipe bands, as well as jousting and dance competitions. In addition, various Celtic rock, folk, and traditional musicians will be performing. 80 participating Scottish and Irish clans will be participating in the games this year. Pageantry and patriotism, spirit and spectacle, talent and teamwork all combine in this awesome display of music and might. Kids will love the games, the parade, the dog show and the amazing food! The festival will be held at Stanley Park Fairgrounds, 1209 Manford Ave, Estes Park, CO 80517. Cost: $28/adult, $12.99/Kids 10-17 years old, Kids under 9 years old are free. Tickets available here.

Boulder County Farmers Markets

Photo Courtesy Boulder County Farmers Markets

When: In Downtown Boulder on 13th& Canyon Blvd every Saturday from 8 AM – 2 PM & every Wednesday from 4 PM – 8 PM; In Longmont every Saturday at the Boulder County Fairgrounds from 8 AM – 1 PM.

Boulder County Farmers Markets are running a little differently, but they are still a great place to source local foods. Read through BCFM’s safety precautions to help you plan your market experience during these times, or to make a shopping reservation. You can find that information here.

NoBo Art District Second Saturdays

Photo Courtesy NoBo Art District

When: September 11, 2021 from 1 – 6 PM

NoBo Second Saturday offers a daytime alternative to the signature event NoBo First Friday. This event provides a socially-distanced outdoor setting featuring the sights and sounds of the Art District with local artists, food vendors, musicians and free family-friendly activities on seven Saturday afternoons from June through December. See this map for location details. Another free event on our list of things to do in Boulder in September!

Longmont Fall ArtWalk and 150th Birthday Celebration

Things to do in Boulder in September
Photo Courtesy Firehouse Art Center

When: September 11, 2021

Longmont is celebrating its 150th birthday at the 2021 Fall ArtWalk! Live music by Mojomama and Antonio Lopez (entertainment provided by the LDDA) on the big stage and local musicians and performers throughout Downtown. Artist Booths and art activities will be held throughout Downtown. Experience the opening of the Longmont Time Capsule with Erik Mason, Curator of History at the Longmont Museum. Participate in the Community Art Creation and live creation of the new time capsule with Art in Public Places. Enjoy the meditative space at Elevated Yoga for those wanting a quiet moment of reflection. Of course there will be food trucks and so much more! This event is free and will be held in downtown Longmont.

Boulder Valley Wine Festival

Photo Courtesy Boulder Valley Wine Festival

When: Saturday, September 11, 2021, 11AM – 5PM

The inaugural Boulder Valley Wine Festival in Louisville, Colorado will feature Colorado produced wine, cider and mead, as well as, retail vendors and live entertainment. Admission includes a wine glass, wine tote and unlimited tastings. The Boulder Valley Wine Festival is taking place at Community Park, 955 Bella Vista Dr, Louisville, CO 80027. Tickets $30 – $80. 21+ Event, available here.

Left Hand Artist Group Summerween

When: Saturday, September 11, 2021 from 2 – 4 PM

The Left Hand Artist Group free Summerween event is back! There will be a costume contest, dinosaur egg hunt, Summerween Trickster Pinata, jack-o-melon carving contest (contestants must bring fully carved jack-o-melons to the event), Jack-o-melon painting, Donut Eating Contest, watermelon rolling relay race and will end with a parade to Main Street to Longmont Art Walk. This event will be held at Thompson Park in Longmont. Another free event on our list of things to do in Boulder in September!

Play Ball! Vintage Base Ball Game

Photo Courtesy Louisville Historical Museum

When: Saturday, September 11, 2021 at 11 AM

You’re invited to watch this free vintage base ball* game! The Louisville Miners will face off against the Starr Base Ball Club, which represents the Colorado Vintage Base Ball Association. Not only will this showdown feature the fun of historic uniforms, equipment, and game rules, but it will take place at Louisville’s own historic ball park that has been the location of countless ball games since the late 1800s. Bring the whole family to enjoy America’s pastime with cracker jacks and photo opportunities! *Baseball, seen here as Base Ball, was historically spelled as two separate words. The Museum is using the historic name to go along with the vintage equipment and uniforms. This event will be held at Miner’s Field in Louisville. Another free event on our list of things to do in Boulder in September!

Boulder’s Story Slam: LAND

Things to do in Boulder in September
Photo Courtesy Boulder Story Slam

When: September 12, 2021 at 7 PM

Boulder’s Story Slam is back for the laugh-inducing, heart-opening, keeping-it-real stories. They’ve got the mic. You bring the stories. This month’s theme is LAND. Here’s how it works: Audience members are invited to put their names in a hat. If your name is drawn, you’ll come to the stage and tell your true, five-minute story in any way related to the theme. What happened when you LANDED the job of your dreams? Did you and your neighbor fight over where to put the backyard fence? Or impress that guy by LANDING the punchline of a bad joke? Did you break your ankle when you LANDED that back handspring? Tell your story or listen to a great night of stories. Hosted by Johanna Walker, speaker coach and lover of all things story. With guest co-host, singer-songwriter-storyteller Darryl Purpose. Get your tickets TODAY at

CommUNITY Revival Artist Market/Live Music Showcase Festival & Fundraiser

things to do in boulder co in september

When: September 11 & 12, 2021

VisionQuest Brewery is hosting a Revival Artist Market and Live Music Showcase Festival and Fundraiser to benefit Intercambio. We will have a variety of amazingly talented artists, awesome live music, food trucks, a special beer release AND a seltzer release, a giveaway (with items from each artist who chooses to participate), and our fundraiser will also support Intercambio! Intercambio is a local nonprofit whose mission is to ignite human potential by cultivating a world where people from different cultural backgrounds connect, communicate, and engage. They provide English language education, resources, and training that create meaningful connections, build cultural awareness, and inspire confidence for people from all over the world! More info here.

Avenue Q at BDT Stage

Photo Courtesy BDT Stage

When: August 13 – October 17, 2021

Looking for a break from the straight and narrow path of the Broadway classics? Need to reboot your theatre habit slightly off-kilter? Well, look no further! Avenue Q is part flesh, part felt and packed with heart – all the ingredients needed to create a laugh out loud musical comedy featuring puppets! Yes, PUPPETS! Bring your husband, bring your wife, bring your sister, bring your friends – but leave your younger kids at home with a sitter because this show is full of mature content. Tickets $65+, available here.

Purity Ring with Dawn Richard at Boulder Theater

things to do in boulder co in september
Photo Courtesy Boulder Theater

When: Wednesday, September 15, 2021 at 8 PM

Purity Ring has partnered with PLUS1 to support environmental organizations working to protect the health of our planet and its people. After more than five years, Purity Ring have returned for their third album. WOMB was released on April 3rd via 4AD and is entirely produced and recorded by the duo of Megan James and Corin Roddick. WOMB chronicles a quest for comfort and the search for a resting place. Lead single ‘stardew’ is a glittering, transcendent invitation to “just be where you are” – to experience the kind of powerful peace that can only be found by truly coming home. Tickets $29+, available here.

Dance to be Free Rooftop Dance Class

Things to do in Boulder in September

When: September 15 & 22, 2021

Lucy Wallace will be teaching Dance to be Free Rooftop Dance Class and Series at The Museum of Boulder two Wednesday nights in September. Join in on the fun and learn the cathartic and emotional choreography set to pop, electronica and hip hop. More info here.

ARTMIX: Opening Reception at Boulder Museum of Contemporary Art

When: September 17, 2021 from 6 – 8 PM

BMoCA is celebrating the opening of ARTMIX! Experience this 100+ artist group exhibition, bid on artwork, and enjoy light fare by Cured and complimentary beverages. More information at

Share the Magic Colorado Golf Benefit

When: Friday, September 17, 2021 from 8 AM – 5 PM

SYNNEX Comstor is hosting the Share the Magic Colorado Golf Benefit. They are hitting the golf course to support two wonderful charities, and they need YOU to help us crush it in the inaugural SYNNEX Share the Magic Open. The event will be held at Coal Creek Golf Course in Louisville, CO. Show off your mad golfing skills for the chance to win prizes and then enjoy lunch and a silent auction. Donations will go to Children’s Hospital Colorado Foundation and Hope for the Warriors. More details here.

Bee Boulder Festival

Photo Courtesy Jeff and Paige

When: Saturday, September 18, 2021 from 10 AM – 2 PM

Join the City of Boulder for the 7th annual FREE family-focused festival celebrating Pollinator Appreciation Month at the Boulder Bee Fest. Connect with local organizations BBB Seed, BeeChicas, Boulder Public Library, Community Fruit Rescue, CU Museum of Natural History, CU Science Discovery, Garden To Table, Goss/Grove Neighborhood Assoc., Growing Gardens and Hive-Tech Solutions. Sing along with Jeff & Paige at 11 a.m. and 1 p.m.! Presented by City of Boulder Parks and Recreation and Planning and Housing Services. This event will be held at Central Park West in Boulder’s Civic Area. Another free event on our list of things to do in Boulder in September!

2021 Broomfield Days

things to do in boulder co in september
Photo Courtesy City of Broomfield

When: Saturday, September 18, 2021 from 7AM – 5PM

Broomfield’s biggest community event, Broomfield Days, is back with a parade, live music, food, local vendors and more! Activities and entertainment throughout the day including a 5K race, clown contest, parade, trade fair, craft festival, food booths, three stages of entertainment, demonstrations, and great community spirit. Broomfield Days is held at Midway Park, W Midway Blvd & Kohl St, Broomfield, CO 80020. Another free event on our list of things to do in Boulder in September!

19th Annual Erie Biscuit Day

Photo Courtesy Erie Historical Society

When: Saturday, September 18, 2021 from 8AM – 12PM

At the 19th Annual Erie Biscuit Day, enjoy some Biscuits and Gravy, Homemade Stew, Live music, cake walk, raffle drawing, craft booths, historic photos and more! Festivities will be held in Historic Downtown Erie, all proceeds benefit Erie Historical Society. This event is held in Downtown Erie on Briggs Street. Another free event on our list of things to do in Boulder in September!

Light Up The Sky Open Hangar Event at Rocky Mountain Metro Airport

Things to do in Boulder in September

When: Saturday, September 18, 2021 from 4 PM – 7 PM

Join AeroAngel for its 10+1 anniversary celebration at the Light Up the Sky Open Hangar Event at Sheltair’s new corporate hangar at Rocky Mountain Metropolitan Airport in Broomfield. The tarmac will be full of cool jets, classic cars, and runway vista. Celebrating over a decade of amazing flights for seriously ill children flying to life-saving medical care. Help support our mission with your silent auction bids, hear from families flown on AeroAngel flights, and capture our vision for the next 10 years. Drop in from 4 – 7 p.m. September 18th for a fun-filled evening of tasty Oskar Blues cuisine, frosty brews, wine, and beverages, and a few special surprises! Tickets are $25 in advance, and $35 at the door, available here.

Superior En Plein Air Art Festival

things to do in boulder co in september
Photo Courtesy Town of Superior

When: Saturday, September 18, 2021 from 9 AM – Noon

The Superior Cultural Arts & Public Spaces Advisory Committee invites you to join the fun at Superior’s first ever “paint out,” which will feature over a dozen Colorado artists who will be painting live in Purple Park! Attendees can wonder around the park to watch the painters, try their hand at painting en plain air at the DIY stations and enjoy breakfast delights and coffee! Find the community art-making station by Sherry Smith who has created 75 ceramic birds that can be painted at the festival then later join a community flock installation (inspired by Louisville’s bird flock by Rita Vali). For more information, click here. Another free event on our list of things to do in Boulder in September!

Mapleton Hill Porchfest

Photo Courtesy Mapleton Hill Porchfest

When: Sunday, September 19, 2021 from 1 PM – 4:30 PM

The Annual Mapleton Hill PorchFest is a musical walkabout that is the envy of all the other neighborhoods. Like last year’s event which drew about 800 people, the event will include 20 different bands of many styles, playing their hearts out on local porches. Do you like bluegrass? Jazz? Classical? Blues? Folk? Of course you do, so plan on attending to hear some of our best local bands. Stroll the beautiful historic Mapleton Hill neighborhood, enjoy the entertainment, meet up with old friends and make new friends. This event is held at the Historic Mapleton Hill Neighborhood. This event FREE.

Boundless Truth: Women’s Stories of Freedom and Incarceration

When: September 19, 2021 at 2 and 5 PM

Motus Theater presents the national premieres of Boundless Truth: Women’s Stories of Freedom and Incarceration. In these two unique performances, one group of monologists at 2pm and another group at 5pm, 7 Black women leaders who were formerly incarcerated tell autobiographical stories about the damage done in the name of justice. With musical responses by Colorado’s famed Spirit of Grace – a capella social justice singers and a special performative response from IWADDE, the Intergenerational Woman’s African Drum and Dance Ensemble. The autobiographical stories were developed in a 24-week Motus Monologue process facilitated by Motus Theater’s Artistic Director, Kirsten Wilson and Transformative Healing Coach Wendy Talley. Monologues were written by Brenda Cisse, Candice Bailey, Colette Payne, Cynthia Randall, Marquitta Brown, Terri House, and Willette Benford in collaboration with Kirsten Wilson. Motus Boundless Truth monologists share personal stories of the racism, biases, and injustices within the criminal legal system. Tickets available here.

Anderson Farms Fall Festival

Things to Do in Boulder in September: Anderson Farms Fall Festival

When: September 22 – October 31, 2021

Anderson Farms is hosting its annual Fall Festival, complete with a pumpkin patch, hayrides and so much more! Admission includes a ton of fun activities such as Colorado’s longest-running 30-acre corn maze, hayride to the pumpkin patch, pumpkin launching, mine cars, barrel train, farm animals, farm lights and more. Click here for a full list of activities. For those who enjoy a fright, after dark Anderson Farms hosts Zombie Paintball Hunt, a unique paintball experience where you shoot zombies throughout the cornfield while riding on a zombie wagon or check out Terror in the Corn, Anderson Farms’ haunted hayride, cornfield & ghost town experience. Pricing: Admission to Fall Festival – Monday – Thursday, $15, Friday, Saturday & Sunday $23. Kids 3 & Under are FREE. Tickets available here. Pricing for Terror in the Corn and Zombie Paintball Hunt here. Anderson Farms is located at 6728 County Rd 3 1/4, Erie, CO 80516.

The Inland Ocean Coalition’s 2021 Masquerade Mermaid Ball

things to do in boulder co in september

When: Friday, September 24, 2021 6 PM – 9:30 PM

Join The Inland Ocean Coalition for a magical in-person Masquerade Mermaid Ball at Boulder Reservoir. Mingle with other ocean lovers and celebrate our connection to the ocean and the amazing ability we all have to make a difference – no matter where we live! Enjoy delicious sustainable food from acclaimed chef Daniel Asher, drinks, live music, and online auction at the Driftwind at the Boulder Reservoir, an open-air venue. Colorado Congressman Joe Neguse will be in attendance for a portion of the evening. Attire is whimsical, oceanic, and cocktail. There will be a costume contest as well, so bring your oceanic best! All proceeds will support the Coalition’s mission of building land-to-sea stewardship. They do this through protecting our ocean, watersheds, and climate, and working to prevent plastic pollution. Tickets $90 ($50 for students). More information here.

Oktoberfest Boulder

Things to do in Boulder in September
Photo Courtesy Oktoberfest Boulder

When: September 24 – 26, 2021

Oktoberfest Boulder presented by Paulaner Brewing Company is a classic Oktoberfest celebration with live music, beer games, German games and more! Lineup includes live music from 40oz to Freedom Sublime Tribute Band, Wake Up & Live (Bob Marley Tribute), and the Polkanauts. This event will be held in Boulder’s Central Park.

Enchanted Forest at Wild Bear Nature Center

Photo Courtesy of Wild Bear Nature Center

When: Saturday, September 25, 2021 from 11AM – 6PM

Wild Bear Nature Center will be hosting its 20th annual Enchanted Forest! This is the Year of the Fox! Enjoy the magic of the fall season! Families and children of all ages take a tour on the trail and meet forest creatures (costumed characters) and learn about their natural habitats. Enjoy goodies in your goody bag, live owls and eagles, magic and music throughout the day. Enjoy drinks and live music 4-6pm. Visit the form at the bottom of the page to purchase tickets! The Enchanted Forest will be held at Wild Bear’s new property at Mud Lake across from the Caribou Room, 2034 Co Rd 126, Nederland, CO 80466. $10/person in advance, $12/person the day of. Seniors and children under 2 years are free. 

Longmont Oktoberfest at The Garden at Left Hand Brewing

Things to do in Boulder in September
Photo Courtesy Left Hand Brewing Foundation

When: September 22 – 26, 2021

Longmont Oktoberfest will be changing venues and dates out of an abundance of caution due to the uncertainty caused by the spread of the COVID-19 Delta variant. Our one-day event scheduled for Saturday, September 25 at Roosevelt Park, which typically draws thousands, will now take place over multiple days at Left Hand Brewing Company‘s new outdoor space, The Garden. The venue change creates a welcoming atmosphere that encourages smaller groups to safely gather and the opportunity to celebrate the occasion throughout five days instead of one. Oktoberfest celebrations at The Garden will be held Wednesday, September 22 through Sunday, September 26. Attendees can expect great brews, live music, and tasty local food vendors every evening with special Oktoberfest-themed activities and all-day music line-ups on both Saturday and Sunday. More details here.

Bluebird Music Festival

When: September 25 & 26, 2021

The Bluebird Music Festival is a benefit concert for the Future Arts Foundation. The festival will feature Jeff Tweedy, Phoffman, City and Colour and more. The festival features an afternoon and an evening event. The Bluebird Music Festival will be held at Macky Auditorium, 1595 Pleasant St, Boulder, CO 80309. Tickets $ 29+, available here.

Boulder Magic Show

Things to do in Boulder in September

When: September 25, 2021 at 2 PM

Following a year’s hiatus, The Boulder Magic Show is back! Ben Young makes kids and their parents crack up with his modern and upbeat magic that’s laugh-out-loud funny. Like a hybrid of magician + stand-up comedian–for families! He’s been featured on the hit CW TV Show Penn & Teller: Fool Us, in major Las Vegas casinos, and has performed for the U.S. troops and their families on 80 military bases worldwide! As always, the Boulder Magic Show at the Dairy is hosted and curated by our own Braden Carlisle. Braden Carlisle continues to curate the best magic. With styles ranging from mentalism to comedy, Braden will leave you laughing harder than you thought possible at a magic show! As a lover of all things magic, Braden is also a published author of the magic theory book “Agree to Disagree” and hosts a weekly magic podcast titled “Awesome People Talking”. Tickets available here.

Colorado Wild Horse and Burro Festival

When: September 25 – 26, 2021

The Colorado Wild Horse & Burro Festival will be held this September at the Estes Park Events Complex. 100-Day Mustang & Burro Training Challenge and Festival with demonstrations and competitions, vendor booths and more. Tickets $15+, available here.

Wall to Wall Boulder eBike Tour

Photo Courtesy JDs Joyrides

When: Throughout the fall, book a time here.

On the Wall To Wall Boulder eBike Mural Ride you’ll see dozens of murals and other sights/sites while touring Boulder in fine style and ease on a Rad Power Bike. Your guide, Joel (JD), is a long-time local with a passion for Boulder, art and showing people a good time on two wheels. The leisurely 2 & 3 hour rides (your choice!) covers 10-20(ish) miles (eBikes make it easy!) and uses murals as our map to an insider’s view of what Boulder’s about. Through the prism of street art, you’ll learn a little something about this magical town that you won’t read in the guidebooks. The Wall To Wall Boulder eBike Mural Ride includes Rad Power Bike, helmet, water and snacks — and a real good time. 2 hour rides $72, 3 hour rides $89. More information here.

Estes Park Autumn Gold Festival

Photo Courtesy USDA

When: September 25 & 26, 2021, 11 AM – 6:00 PM

Autumn Gold Festival is Estes Park’s fall celebration – a Festival of Bands, Brats & Beer. Entrance is free to dance, listen to music and enjoy the festival. The Estes Valley Sunrise Rotary will be offering mustard-smothered bratwursts, cold brews, soft drinks and more as talented local musicians and award-winning Colorado bands play. Browse the vendor booths who will be offering corn on the cob, funnel cakes, fresh squeezed lemonade, roasted almonds and desserts. Free family activities include face painting, corn bag toss, a bounce house and a classic car show.  Fall all the details, click here. The Autumn Gold Festival is held at Bond Park, 170 MacGregor Ave, Estes Park, CO 80517.

Broomfield Plaza Car Show and Family Fun Fest

When: Sunday, September 26, 2021 from 10 AM – 1 PM

Bring the whole family out for the annual Car Show and Family Fun Fest at Broomfield Plaza! Free activities include: car show with Disc Jockey Cruisin’ Dave, mini golf, balloon artists, kids crafts and more.

Love and Justice 2021

When: Thursday, September 30, 2021 at 5 PM

Join Longmont Community Justice Partnership staff and volunteers to celebrate the thousands of lives that have been changed by the power of restorative justice over the last 25 years at Love and Justice 2021. LCJP supports those who seek justice and healing after being harmed, and we support those willing to be held accountable for harm caused. By amplifying voice and empowering people through their strengths, they transcend the stigmatizing labels of criminal, thief, victim, delinquent. This event will be held at the Garden at Left Hand or Virtual via YouTube, more info and tickets here.

Things to do in Boulder in September: Frequently Asked Questions

What is there to do in Boulder in September?

There are tons of fun fall festivals in the Boulder area in September, including: the Downtown Boulder Fall Festival, Boulder Oktoberfest, Street Wise Boulder Mural Festival and so much more. September in Boulder is optimal for outdoor activities including hiking, biking, stand up paddle boarding and picnicking.

Does it snow in Boulder in September?

It can snow in September, but it is unlikely. Officially, there is a 1% chance, although it did snow 5 inches from September 8 – 9, 2020.

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