Windsor weather in August 2025

Expect 79°F daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Windsor in August. Check more long-term weather averages for Windsor in August before you book your next holiday to Ontario in 2025/2026.

  • 79°F maximum daytime temperature in August in Windsor79
    79°F max day temperature
  • 8 hours of sunshine per day
  • 10 days with some rainfall in August in Windsor10
    10 days with some rainfall
  • 61°F minimum night-time temperature in August in Windsor61
    61°F 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
  • 3.3 inches monthly rainfall in August in Windsor3.3
    3.3 inches of monthly rainfall
  • UV (maximum) index 8 (Very High) in August in Windsor8
    8 (Very High) UV index
  • 73°F sea temperature in August in Windsor73
    73°F 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)  |  Imperial (°F)

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How hot is it in Windsor in August?

Daytime temperatures usually reach 79°F in Windsor in August with low heat and humidity, falling to 61°F 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 73°F.

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 3.3 inches.

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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