Denver weather in August 2025

Expect 30°C 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.

  • 30°C maximum daytime temperature in August in Denver30
    30°C max day temperature
  • 10 hours of sunshine per day
  • 9 days with some rainfall in August in Denver9
    9 days with some rainfall
  • 14°C minimum night-time temperature in August in Denver14
    14°C 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
  • 40 mm monthly rainfall in August in Denver40
    40 mm 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 / mm)  |  Imperial (°F / inches)

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How hot is it in Denver in August?

Daytime temperatures usually reach 30°C in Denver in August with moderate heat and humidity, falling to 14°C 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 40mm.

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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