Aspen weather in August 2025

Expect 21°C daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in Aspen in August. Check more long-term weather averages for Aspen in August before you book your next holiday to Colorado in 2025/2026.

  • 21°C maximum daytime temperature in August in Aspen21
    21°C max day temperature
  • 9 hours of sunshine per day
  • 11 days with some rainfall in August in Aspen11
    11 days with some rainfall
  • 1°C minimum night-time temperature in August in Aspen1
    1°C min night temperature
  • 14 hours of daylight per day in August in Aspen14
    14 hours of daylight per day
  • No heat & humidity in August in Aspen0
    No heat & humidity
  • 53 mm monthly rainfall in August in Aspen53
    53 mm of monthly rainfall
  • UV (maximum) index 10 (Very High) in August in Aspen10
    10 (Very High) UV index

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The August weather guide for Colorado (Aspen) 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 / mm)  |  Imperial (°F / inches)

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How hot is it in Aspen in August?

Daytime temperatures usually reach 21°C in Aspen in August, falling to 1°C at night.

How sunny is it in Aspen in August?

There are normally 9 hours of bright sunshine each day in Aspen in August - that's 68% of daylight hours.

Does it rain in Aspen in August?

There are usually 11 days with some rain in Aspen in August and the average monthly rainfall is 53mm.

Aspen August sunrise & sunset times

Browse the sunrise and sunset times for Aspen in August 2025. Select a month to view Aspen sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 05:08 19:19
Saturday, 16th August 2025 05:22 19:01
Sunday, 31st August 2025 05:35 18:39

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