Estes Park weather in September 2025

Expect 61°F daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Estes Park in September. Check more long-term weather averages for Estes Park in September before you book your next holiday to Colorado in 2025/2026.

  • 61°F maximum daytime temperature in September in Estes Park61
    61°F max day temperature
  • 8 hours of sunshine per day
  • 9 days with some rainfall in September in Estes Park9
    9 days with some rainfall
  • 30°F minimum night-time temperature in September in Estes Park30
    30°F min night temperature
  • 12 hours of daylight per day in September in Estes Park12
    12 hours of daylight per day
  • No heat & humidity in September in Estes Park0
    No heat & humidity
  • 1.5 inches monthly rainfall in September in Estes Park1.5
    1.5 inches of monthly rainfall
  • UV (maximum) index 8 (Very High) in September in Estes Park8
    8 (Very High) UV index

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Estes Park by month

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The September weather guide for Colorado (Estes Park) 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 warm is it in Estes Park in September?

Daytime temperatures usually reach 61°F in Estes Park in September, falling to 30°F at night.

How sunny is it in Estes Park in September?

There are normally 8 hours of bright sunshine each day in Estes Park in September - that's 68% of daylight hours.

Does it rain in Estes Park in September?

There are usually 9 days with some rain in Estes Park in September and the average monthly rainfall is 1.5 inches.

Estes Park September sunrise & sunset times

Browse the sunrise and sunset times for Estes Park in September 2025. Select a month to view Estes Park sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:30 18:33
Monday, 15th September 2025 05:43 18:10
Tuesday, 30th September 2025 05:58 17:45

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