Mountain air

Steamboat Springs, Colorado weather in September

Temperature, rain and sunshine in September: long-term averages from 30 years of weather data, not a forecast.

90

Holiday weather in September

Excellent

Best time to visit: June, August – September

Best for skiing: December – April

What is the weather like in Steamboat Springs, Colorado in September?

In September, Steamboat Springs, Colorado is warm: daytime highs average 21 °C, and nights cool down to about 6 °C. The sun shines for around 8 hours a day. Rain falls on about 7 days, adding up to 39 mm. All in all, September is an excellent month for a holiday in Steamboat Springs, Colorado.

September compared

How the weather changes from August to October. Tap a month to open it.

AugustAugSeptemberSepOctoberOct
Score889063
Day26°21°13°
Night11°6°−1°
Sun9 h8 h6 h
Rain days679

More details for September

Daylight
12 h 32 min06:47 – 19:19
UV index
7 · highclear sky, noon (estimate)All months
Muggy days
0 daysdew point 18 °C or moreAll months
Wind
14 km/haverage daily peakAll months
Cloud cover
33 %on averageAll months
Hot days
0 days30 °C or moreAll months
Snow days
1 day1 cm or more of fresh snowAll months
Time zone
UTC−6America/Denver

How the score comes together

  • Temperatureweight 50 %100 %
  • Sunshineweight 20 %82 %
  • Few rainy daysweight 30 %79 %

Each factor is rated from 0 to 100 % and weighted for the travel style “Mountain air”.

What to pack in September

  • Sunscreen
  • Sunglasses & sun hat
  • A jumper for the evenings

Steamboat Springs, Colorado in September: quick answers

Is Steamboat Springs, Colorado hot in September?

Warm rather than hot: in September, daytime highs in Steamboat Springs, Colorado average 21 °C and nights cool to about 6 °C.

Does it rain much in Steamboat Springs, Colorado in September?

Rain falls on about 7 days, adding up to 39 mm.

Steamboat Springs, Colorado month by month

Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences