Fort Collins weather in September 2024

Expect 75°F daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in Fort Collins in September. Check more long-term weather averages for Fort Collins in September before you book your next holiday to Colorado in 2024/2025.

  • 75°F maximum daytime temperature in September in Fort Collins75
    75°F max day temperature
  • 9 hours of sunshine per day
  • 7 days with some rainfall in September in Fort Collins7
    7 days with some rainfall
  • 46°F minimum night-time temperature in September in Fort Collins46
    46°F min night temperature
  • 12 hours of daylight per day in September in Fort Collins12
    12 hours of daylight per day
  • No heat & humidity in September in Fort Collins0
    No heat & humidity
  • 1.3 inches monthly rainfall in September in Fort Collins1.3
    1.3 inches of monthly rainfall
  • UV (maximum) index 7 (High) in September in Fort Collins7
    7 (High) UV index

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The September weather guide for Colorado (Fort Collins) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C)  |  Imperial (°F)

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How hot is it in Fort Collins in September?

Daytime temperatures usually reach 75°F in Fort Collins in September, falling to 46°F at night.

How sunny is it in Fort Collins in September?

There are normally 9 hours of bright sunshine each day in Fort Collins in September - that's 72% of daylight hours.

Does it rain in Fort Collins in September?

There are usually 7 days with some rain in Fort Collins in September and the average monthly rainfall is 1.3 inches.

Fort Collins September sunrise & sunset times

Browse the sunrise and sunset times for Fort Collins in September 2024. Select a month to view Fort Collins sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Sunday, 1st September 2024 06:28 19:31
Sunday, 15th September 2024 06:42 19:08
Monday, 30th September 2024 06:56 18:43

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