Steamboat Springs Weather in September

What's the weather like in Steamboat Springs (Colorado) in September 2025?

The climate in Steamboat Springs during September can be summarized as cool and reasonably dry.

September is in the fall / autumn in Steamboat Springs and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a cool 19°C (66°F), whilst at night -2°C (29°F) is normal.

Steamboat Springs weather averages (imperial / metric)
Daytime temperature 18.8°C 65.8°F
Nightly temperature -1.6°C 29.2°F
Average temperature 8.6°C 47.5°F
Daily sunshine 9.5 hrs
Avg rainfall 40 mm 1.6 ins
Rainy days 8 days
Sea temperature 17.5°C 63.4°F
Humidity 48%
Windspeed 15.8kph 10 mph

On average September is the 4th driest month of the year in Steamboat Springs with around 40mm 1.6 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 8 days, although this may vary considerably.

On the flip side this corresponds to an average of 9.5 hours of sunshine per day.

September temperatures in Steamboat Springs

Steamboat Springs average temperature in September

September rainfall

Steamboat Springs average rain in September

September hourly sunshine

Steamboat Springs average rain in September

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Steamboat Springs in September 2025.

Other monthly averages

Best places to visit in September

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Steamboat Springs weather stats

Steamboat Springs weather statistics
Hottest month: July 24.2°C 75.6°F
Driest month: June 35mm 1.4ins
Sunniest month: September 9.5hrs
Coldest month: January -3.4°C 25.9°F
Wettest month: January 53mm 2.1ins
Map showing location of Steamboat Springs (40.48498, -106.83172) Steamboat Springs map pin © Google

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