Detroit weather in August 2025

Expect 27°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Detroit in August. Check more long-term weather averages for Detroit in August before you book your next holiday to Michigan in 2025/2026.

  • 27°C maximum daytime temperature in August in Detroit27
    27°C max day temperature
  • 8 hours of sunshine per day
  • 9 days with some rainfall in August in Detroit9
    9 days with some rainfall
  • 17°C minimum night-time temperature in August in Detroit17
    17°C min night temperature
  • 14 hours of daylight per day in August in Detroit14
    14 hours of daylight per day
  • Moderate heat & humidity in August in DetroitM
    Moderate heat & humidity
  • 81 mm monthly rainfall in August in Detroit81
    81 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in August in Detroit8
    8 (Very High) UV index
  • 23°C sea temperature in August in Detroit23
    23°C sea temperature

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The August weather guide for Michigan (Detroit) 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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More about the USA

How hot is it in Detroit in August?

Daytime temperatures usually reach 27°C in Detroit in August with moderate heat and humidity, falling to 17°C at night.

How sunny is it in Detroit in August?

There are normally 8 hours of bright sunshine each day in Detroit in August - that's 61% of daylight hours.

How warm is the sea around Detroit in August?

The average sea temperature around Detroit in August is 23°C.

Does it rain in Detroit in August?

There are usually 9 days with some rain in Detroit in August and the average monthly rainfall is 81mm.

Detroit August sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 05:25 19:51
Saturday, 16th August 2025 05:41 19:31
Sunday, 31st August 2025 05:57 19:07

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