Denver weather in August 2025

Expect 86°F daytime maximum temperatures in the shade with on average 10 hours of sunshine per day in Denver in August. Check more long-term weather averages for Denver in August before you book your next holiday to Colorado in 2025/2026.

  • 86°F maximum daytime temperature in August in Denver86
    86°F max day temperature
  • 10 hours of sunshine per day
  • 9 days with some rainfall in August in Denver9
    9 days with some rainfall
  • 57°F minimum night-time temperature in August in Denver57
    57°F min night temperature
  • 14 hours of daylight per day in August in Denver14
    14 hours of daylight per day
  • Moderate heat & humidity in August in DenverM
    Moderate heat & humidity
  • 1.6 inches monthly rainfall in August in Denver1.6
    1.6 inches of monthly rainfall
  • UV (maximum) index 10 (Very High) in August in Denver10
    10 (Very High) UV index

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The August weather guide for Colorado (Denver) 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 Denver in August?

Daytime temperatures usually reach 86°F in Denver in August with moderate heat and humidity, falling to 57°F at night.

How sunny is it in Denver in August?

There are normally 10 hours of bright sunshine each day in Denver in August - that's 72% of daylight hours.

Does it rain in Denver in August?

There are usually 9 days with some rain in Denver in August and the average monthly rainfall is 1.6 inches.

Denver August sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 04:59 19:13
Saturday, 16th August 2025 05:13 18:54
Sunday, 31st August 2025 05:27 18:32

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