September Events in Summit County 2026: What's Happening All Month

The aspens are turning, the crowds are thinning, and September in Summit County is packed. Here is everything worth knowing this month, from free outdoor concerts to film screenings to a bluegrass and beer weekend.

Silverthorne First Friday Concert: Zepparella
Friday, September 4 | Free

Silverthorne kicks off the month with a First Friday concert at the Outlets plaza. September's headliner is Zepparella, an all-female Led Zeppelin tribute band that draws a big crowd every time they come through. Free, outdoor, and a good excuse to grab dinner somewhere in town before the show.

Union Peak Festival at Copper Mountain
September 9-11 | Free

The Union Peak Festival is back for its second year at Copper Mountain and the lineup is stacked. Free live music across multiple days, live art, food demos, and complimentary sports clinics on the mountain. It is the kind of festival that does not feel like it should be free but is. coppercolorado.com

Frisco Fall Fest + Arts at Altitude
September 11-12 | Free

This is one of the better fall weekends Frisco puts on. The Arts at Altitude art show runs both days from 10am to 5pm at Frisco Historic Park, featuring Colorado artists with a strong local Summit County presence. Jewelry, pottery, photography, paintings. Saturday expands into the full Fall Fest experience with a German beer garden, pretzels, sausage, live music, and make-and-take art projects for kids. A solid Saturday plan if you have family visiting.

Breckenridge Bluegrass and Beer Festival
September 11-13 | Paid

Three days of live bluegrass and craft beer at Main Street Station in Breckenridge. Friday night opens with a VIP Beer Pairing Dinner at Quandary Grille. Saturday is the main event: a grand tasting with live music running from 2pm to 6pm. Sunday finishes with a brunch at Quandary Grille. Breck Brewery and Broken Compass are both pouring, which is all you really need to know. Tickets at eventbrite.com

Breckenridge Film Festival
September 17-20 | Paid (some free screenings)

The 46th annual Breck Film Festival is one of the longest-running film festivals in the country and it is genuinely good. Over 80 films, 40 filmmakers in attendance, screenings at the Eclipse Theatre, Riverwalk Center, and Breckenridge Theater. Opening night premiere is "The Best You Can" featuring Kevin Bacon and Kyra Sedgwick. There is also an anniversary toast with a special appearance by Judd Hirsch. Individual film passes run $16-$20 and go on sale September 1. The Peak 10 all-access pass is $225 and available now. breckfilm.org

Run the Rockies Road Half Marathon and 11K
Saturday, September 19 | Paid

If you or someone you know runs, this one is worth doing. The course starts at Copper Mountain and winds downhill through Ten Mile Canyon, finishing at Frisco Historic Park on Main Street. Seventy-five percent downhill, which makes it a good first half marathon option. Bib pickup is Friday evening or early Saturday morning. Registration closes September 17. townoffrisco.com

Breckenridge Oktoberfest
September 25-27 | Free

Main Street Breckenridge turns into a German beer festival for one weekend every fall and it is a great one. Free to attend, with steins, pretzels, live music, and stein-holding contests. Hours are Friday 2-6pm, Saturday 11am-6pm, and Sunday 11am-5pm. If you want a stein to take home, order online before you go because they sell out every year. gobreck.com

A Note on September in Summit County

If you have been thinking about visiting or you own a place up here, September is worth planning around. The peak summer rates are gone, the trails are still open, and the aspen color usually peaks in the second and third weeks of the month. The events above give you plenty of reasons to make the trip.

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FAQ

What are the best free events in Summit County in September 2026?
Breckenridge Oktoberfest (September 25-27), the Union Peak Festival at Copper Mountain (September 9-11), and Frisco Fall Fest (September 11-12) are all free to attend. The Silverthorne First Friday concert on September 4 is also free.

When does the Breckenridge Film Festival take place in 2026?
The 46th annual Breckenridge Film Festival runs September 17-20, 2026. Individual film tickets go on sale September 1 and range from $16 to $20.

When do the aspens change color in Summit County?
Aspen color in Summit County typically peaks in mid to late September, usually around the second and third weeks of the month. Higher elevations turn first.

Is Breckenridge Oktoberfest really free?
Yes, the event itself is free. You pay for food, drinks, and steins. Steins sell out fast so ordering online before the event is smart.

What is the Union Peak Festival at Copper Mountain?
The Union Peak Festival is a multi-day outdoor festival at Copper Mountain featuring free live music, live art installations, food demonstrations, and complimentary sports clinics. The 2026 festival is the second annual event and runs September 9-11.