Search flights, hotels & activities for Colorado
Compare flights, hotels, cars, and activities in one place.
500+airlines & travel sites compared
21,000+routes tracked
€0booking fees from us
Freeprice drop alerts
Things to Do in Colorado in September
Planning a trip to Colorado in September?
Real things to do in Colorado in September
Ad
Ad
Ad
Ad
Ad
Ad
Ad
Ad
Ad
Ad
Red Rocks Express Tour from Denver: Views and Photo Opportunities
★ 5.0(16 reviews)· 1h 45m
From €44
EBIKE Mountain Adventure in Colorado Springs: Gold Camp Road
★ 5.0(18 reviews)· 4 hrs
From €151
Sunset Hiking Tour in the Rocky Mountains near Denver
★ 5.0(44 reviews)· 4 hrs
From €62
Rocky Mountain 6-Zipline Adventure on CO Longest and Fastest!
★ 5.0(778 reviews)· 3 hrs
From €116
Discover Rocky Mountain National Park-Small Group Tour & Picnic
★ 4.9(3,480 reviews)· 8 hrs
From €192
Pikes Peak and Garden of the Gods Tour from Denver
★ 4.9(204 reviews)· 8h 30m
From €169
Shared Half-Day Mountain Tour in Red Rocks Evergreen and Echo Lake
★ 4.9(882 reviews)· 5 hrs
From €88
Colorado River Whitewater Rafting: Half Day Trip
★ 4.9(30 reviews)· 3h 30m
From €85
Small-Group Tour of the Rocky Mountain National Park from Denver
★ 4.9(159 reviews)· 8 hrs
From €142
Rocky Mountain Escape - Scenic Views and Nature Walks
★ 4.8(2,055 reviews)· 4 hrs
From €90
Real listings from Viator, including live ratings and prices — clicking through takes you to book directly.
Plan the rest of your trip
Continue planning your trip to Colorado
Same destination, real availability — no need to search again.
FAQs — Colorado in September
We don't have historical weather data on file for Colorado right now.