Is Colorado Worth Visiting in September?
If you're wondering whether Colorado is worth visiting in September, the answer is a resounding yes. September is one of the best months to explore the Centennial State, offering cooler temperatures, vibrant fall foliage, fewer crowds, and a lineup of unforgettable seasonal activities. Whether you're chasing golden aspens, looking for epic hikes, or planning a peaceful weekend getaway, Colorado in September checks every box.
Why Visit Colorado in September?
1. Fall Colors in Full Swing
September marks the beginning of Colorado’s famous fall foliage season. The state's abundant aspen groves begin to turn gold, lighting up mountain valleys and scenic highways with stunning color. Peak leaf-peeping varies by elevation but typically begins in mid to late September.
Top spots for fall foliage include:
Kebler Pass (home to one of the largest aspen groves in North America)
San Juan Skyway and the Million Dollar Highway
Kenosha Pass and Boreas Pass
Dallas Divide near Ridgway
Maroon Bells near Aspen
This natural display is one of the main reasons travelers choose to visit Colorado in September.
2. Perfect Weather for Outdoor Activities
Colorado enjoys mild, sunny days and cool nights in September. Daytime temperatures in the mountains usually hover between the high 60s and low 70s, making it ideal for hiking, mountain biking, fly fishing, or simply enjoying the crisp mountain air. Compared to the summer heat or winter snow, this time of year offers a sweet spot for outdoor exploration.
Popular outdoor activities include:
Hiking in Rocky Mountain National Park or around Crested Butte
Scenic drives through fall foliage
Visiting lakes like Grand Lake or Twin Lakes
Horseback riding, zip-lining, and ATV tours in mountain towns
3. Fewer Crowds After Labor Day
While summer sees heavy tourist traffic, especially in national parks and resort towns, things quiet down significantly after Labor Day. September offers a more relaxed and less crowded experience. It’s a great time to enjoy popular destinations without the long lines and busy trails.
Expect easier reservations at:
Hotels and short-term rentals
Campgrounds and RV parks
Tours and excursions
If you're looking for peace and quiet with unbeatable scenery, September in Colorado delivers.
4. Wildlife Viewing and the Elk Rut
September marks the start of the elk rut (mating season), especially in areas like Estes Park and Rocky Mountain National Park. Visitors can witness herds of elk gathering in meadows while bulls bugle—a haunting and beautiful sound of the season.
Wildlife photography is excellent in September, with chances to see:
Elk
Moose
Mule deer
Bald eagles
Bighorn sheep
Early mornings and dusk are the best times for sightings, so bring your binoculars and a camera.
5. Local Events and Festivals
September is a vibrant month for local culture, with festivals across the state celebrating music, harvest, art, and mountain life. From small-town fairs to major mountain gatherings, there’s something for everyone.
Popular September festivals in Colorado include:
Telluride Blues & Brews Festival
Colorado State Fair & Rodeo in Pueblo
Denver Oktoberfest
Elk Fest in Estes Park
Wine and Harvest festivals in Palisade and Grand Junction
These events combine local food, live music, and scenic backdrops, adding even more value to a fall visit.
6. Charming Small Towns and Scenic Drives
Colorado’s mountain towns come alive in September. With the summer crowds gone and winter still on the horizon, you can truly take your time exploring these scenic gems. Whether it’s a coffee shop in Breckenridge, an art gallery in Telluride, or a vineyard in Palisade, September invites a slower pace and deeper appreciation.
Not-to-miss drives and towns:
Snowmass Village and Aspen for golden leaves and high-elevation hikes
Leadville and Buena Vista for historic charm and fall views
Ouray and Silverton for hot springs and mountain roads
Steamboat Springs for scenic biking and harvest events
What to Pack for a September Trip to Colorado
Packing smart is key to enjoying all Colorado has to offer this time of year.
Essentials include:
Layers (mornings and evenings can get chilly)
Light jackets or fleece
Waterproof hiking boots
Sun protection (Colorado is sunny even in fall)
Reusable water bottle (hydration is critical at altitude)
Camera or smartphone for fall foliage photos
Don’t forget to check road conditions and elevation-related weather forecasts, especially if heading into the high country.
Final Verdict: Is Colorado Worth Visiting in September?
Absolutely. Colorado in September offers a perfect blend of natural beauty, ideal weather, and authentic local experiences. Whether you’re exploring national parks, relaxing in a mountain town, or taking in golden aspens on a backroad drive, this month gives you the very best of what Colorado has to offer—without the crowds.
If you're planning a trip, now’s the time to book. September is short, but the memories you’ll make in Colorado will last a lifetime.