Winnipeg weather in August 2025

Expect daytime maximum temperatures of 25°C in Winnipeg in August based on long-term weather averages. There are 9 hours of sunshine per day on average with 10 days with some rainfall and typically 73 mm of rainfall in the month.

  • 25°C maximum daytime temperature in August in Winnipeg25
    25°C max day temperature
  • 9 hours of sunshine per day
  • 10 days with some rainfall in August in Winnipeg10
    10 days with some rainfall
  • 12°C minimum night-time temperature in August in Winnipeg12
    12°C min night temperature
  • 14 hours of daylight per day in August in Winnipeg14
    14 hours of daylight per day
  • No heat & humidity in August in Winnipeg0
    No heat & humidity
  • 73 mm monthly rainfall in August in Winnipeg73
    73 mm of monthly rainfall
  • UV (maximum) index 6 (High) in August in Winnipeg6
    6 (High) UV index

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The August weather guide for Manitoba (Winnipeg) 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 Winnipeg in August?

Daytime temperatures usually reach 25°C in Winnipeg in August with no heat and humidity, falling to 12°C at night.

How sunny is it in Winnipeg in August?

There are normally 9 hours of bright sunshine each day in Winnipeg in August - that's 63% of daylight hours.

Does it rain in Winnipeg in August?

There are usually 10 days with some rain in Winnipeg in August and the average monthly rainfall is 73mm.

Winnipeg August sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 04:59 20:10
Saturday, 16th August 2025 05:21 19:44
Sunday, 31st August 2025 05:43 19:14

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