Windsor weather in August 2025

Expect daytime maximum temperatures of 26°C in Windsor, Ontario in August based on long-term weather averages. There are 8 hours of sunshine per day on average with 10 days with some rainfall and typically 84 mm of rainfall in the month.

  • 26°C maximum daytime temperature in August in Windsor26
    26°C max day temperature
  • 8 hours of sunshine per day
  • 10 days with some rainfall in August in Windsor10
    10 days with some rainfall
  • 16°C minimum night-time temperature in August in Windsor16
    16°C min night temperature
  • 14 hours of daylight per day in August in Windsor14
    14 hours of daylight per day
  • Low heat & humidity in August in WindsorL
    Low heat & humidity
  • 84 mm monthly rainfall in August in Windsor84
    84 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in August in Windsor8
    8 (Very High) UV index
  • 23°C sea temperature in August in Windsor23
    23°C sea temperature

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The August weather guide for Ontario (Windsor) 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 Ontario

How hot is it in Windsor in August?

Daytime temperatures usually reach 26°C in Windsor in August with low heat and humidity, falling to 16°C at night.

How sunny is it in Windsor in August?

There are normally 8 hours of bright sunshine each day in Windsor in August - that's 59% of daylight hours.

How warm is the sea around Windsor in August?

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

Does it rain in Windsor in August?

There are usually 10 days with some rain in Windsor in August and the average monthly rainfall is 84mm.

Windsor August sunrise & sunset times

Browse the sunrise and sunset times for Windsor in August 2025. Select a month to view Windsor 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 05:40 19:31
Sunday, 31st August 2025 05:56 19:07

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