Denver events & things to do in September 2026
Start with Colorado State Capitol, RiNo Art District, plus Red Rocks Park and Amphitheatre. September in Denver averages 26°C / 80°F highs, 10°C / 50°F nights, and about 6 rainy days.
Expect 26°C/80°F days and about 6 rainy ones in September. Start with these:
- Colorado State Capitol★ 4.6 · 891 reviewsThe capitol opened in 1894 with a gold dome and a west steps marker near Denver's one-mile elevation.
- RiNo Art District★ 4.6 · 479 reviewsRiver North turned warehouses and rail-side blocks into mural corridors, breweries, food halls, studios, and live-music rooms.
- Black MarbleSep 1The Federal Theatre · Source: SeatGeek
30% off a Going membership when you plan your trip.
By TripSapien Research · Updated June 3, 2026
Denver in September 2026
Weather
TempTemperature
80°F / 50°F
26.4°C / 10°C
RainPrecipitation
6d
1.3in · 34mm
LightDaylight
12.2h
September is clear and comfortable, strong for Boulder, Golden, and city patios.
Events & festivals
Event calendar- Sep 2
- Sep 2
- Sep 3
Show all 39 events for September
- Sep 3
- Sep 4 – Sep 21
- Sep 4 – Sep 6
- Sep 5 – Sep 6
Cherry Creek Arts Festival - Fall Preview
A preview event highlighting artists and craftspeople who will participate in the main summer festival, with live music and food.
Planning lead · dates set closer in · Source: festival research
- Sep 5
- Sep 6
- Sep 6
- Sep 8
- Sep 8
- Sep 9
- Sep 9
- Sep 10 – Sep 20
Denver Film Festival - September Edition
A special fall edition of the Denver Film Festival featuring independent films, documentaries, and panel discussions.
Planning lead · dates set closer in · Source: festival research
- Sep 10
- Sep 11 – Sep 12
As Colorado’s largest summer festival, Global Dance Festival is one of the premier cultural developments in a state with some of the top population booms in the country.
Source: festival calendar
- Sep 11
- Sep 12 – Sep 13
Denver Arts Festival
An outdoor festival showcasing local and national artists with live music, food vendors, and interactive art installations.
Planning lead · dates set closer in · Source: festival research
- Sep 12
- Sep 13
- Sep 13
- Sep 14
- Sep 14
- Sep 15
- Sep 16
- Sep 17
- Sep 18 – Sep 20
Denver Oktoberfest
A lively celebration of Bavarian culture featuring traditional music, food, beer, and dancing in Denver's historic district.
Planning lead · dates set closer in · Source: festival research
- Sep 19
- Sep 21
- Sep 22
- Sep 23
Johnny Blue Skies & The Dark Clouds - Mutiny For The Masses 2026 Tour
Music · Country.
Source: Ticketmaster
- Sep 24 – Sep 26
Great American Beer Festival
The largest beer festival in the U.
Planning lead · dates set closer in · Source: festival research
- Sep 25
- Sep 26
- Sep 27
- Sep 28
- Sep 29
- Sep 30
Holidays, observances & long weekends
Holiday and observance schedules can affect services and venue hours; confirm each place directly.
- Sep 7Labour DayPublic holiday
- Sep 5-Sep 7Long weekend
About Denver
City overview
Denver is the Mile High City on the Front Range, where the High Plains meet the Rocky Mountains and altitude, sunshine, rail lines, and brewery districts shape the day. LoDo, RiNo, Capitol Hill, the Golden Triangle, Cherry Creek, Highland, and South Broadway create a city map that moves quickly from Union Station and museums to foothill day trips.
Food & drink
Denver food leans Southwestern and mountain-state: green chile is a pork-and-chile sauce poured over burritos, breakfast burritos wrap eggs and potatoes for commuter counters, and bison burgers, lamb, trout, and Palisade peaches tie menus to Colorado ranches and farms. Denver Central Market, Union Station, Avanti in LoHi, South Broadway, Cherry Creek, and Santa Fe arts-district restaurants add breweries, food halls, and game-day snacks near Coors Field.
Top sights
Ranked for September suitability using weather, setting, ratings, and review volume.
- 1Red Rocks Park and Amphitheatre
- 2Denver Botanic Gardens
- 3Denver Art Museum
- 4Clyfford Still Museum
- 5Molly Brown House Museum
- 6Coors Field
- 7Denver Museum of Nature and Science
- 8Denver Union Station
1Red Rocks Park and Amphitheatre
4.9★ · 64,068mixedThe Civilian Conservation Corps shaped the amphitheatre between red sandstone monoliths, and it opened in its modern form in 1941 west of Denver. Concerts, stairs, trails, and the Colorado Music Hall of Fame make it both venue and day stop.
Wikipedia
2Denver Botanic Gardens
4.8★ · 18,106mixedOpen dailyThe gardens opened in 1951 and developed the York Street site into themed gardens, conservatory rooms, water features, and high-plains planting displays. It is near Cheesman Park and Capitol Hill.
Wikipedia
3Denver Art Museum
4.7★ · 16,169indoorClosed WedThe museum traces its roots to 1893, added Gio Ponti's 1971 Martin Building, and expanded with Daniel Libeskind's angular Hamilton Building in 2006. Indigenous arts, Western American art, design, and temporary shows fill the Golden Triangle campus.
Wikipedia
Show 3 more sights
- 4Clyfford Still Museum
- 5Molly Brown House Museum
- 6Coors Field
Neighborhoods
1LoDo and Union Station
Lower Downtown is brick, rail, and nightlife-heavy, with Union Station, Coors Field, Dairy Block, bars, hotels, and quick airport-train access.
2RiNo and Five Points
RiNo is mural-covered and industrial, with breweries, food halls, galleries, music venues, and Five Points jazz history nearby.
3Capitol Hill and Golden Triangle
This central civic side is museum-heavy, with the capitol, Denver Art Museum, Clyfford Still Museum, Molly Brown House, Civic Center, and older apartment blocks.
Day trips
45km / 35-50min by car or FF bus from Union Station
Boulder
Pearl Street, the Flatirons, Chautauqua trails, breweries, and university energy make Boulder the easiest foothill day.
110km / 1.5-2h by car from Denver to Estes Park entrance
Rocky Mountain National Park
Trail Ridge Road, alpine lakes, elk, tundra, and high-elevation hikes require timed-entry planning in peak season.
25km / 30min by car or light rail plus local ride from Downtown Denver
Golden and Lookout Mountain
Golden adds Clear Creek, the Colorado School of Mines, Coors brewery history, foothill trails, and Buffalo Bill's grave above town.
Getting around
RTD light rail, buses, the A Line airport train, Union Station services, scooters, bikes, and rideshares handle central Denver, with cars useful for Red Rocks and mountain trips. The 1,609-metre elevation makes hydration, sunscreen, and slower first-day pacing practical health rules.
Planning a Denver trip?
Add your dates and we'll check every place for closures, limited hours, and booking needs in September.
Common questions about Denver in September
- What to pack for Denver in September
Pack for September's weather, not a generic Denver checklist.
- Layerable daytime clothes for average highs around 26°C / 80°F.
- A light evening layer because nights average 10°C / 50°F.
- A small umbrella or packable shell for scattered rain across about 6 days.
- How many days do you need in Denver
- 4 days covers the main Denver highlights at a realistic pace. Add 3 extra days if you want the listed day trips.
- Is Denver worth visiting in September
- Yes. September in Denver averages 26°C / 80°F highs, 10°C / 50°F nights, and about 6 rainy days.
Ready to plan Denver?
You've seen what's on — now get a day-by-day Denver plan for September 2026, every place checked for your exact dates.