Winnipeg weather in September 2025

Expect 18°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Winnipeg in September. Check more long-term weather averages for Winnipeg in September before you book your next holiday to Manitoba in 2025/2026.

  • 18°C maximum daytime temperature in September in Winnipeg18
    18°C max day temperature
  • 6 hours of sunshine per day
  • 9 days with some rainfall in September in Winnipeg9
    9 days with some rainfall
  • 6°C minimum night-time temperature in September in Winnipeg6
    6°C min night temperature
  • 13 hours of daylight per day in September in Winnipeg13
    13 hours of daylight per day
  • No heat & humidity in September in Winnipeg0
    No heat & humidity
  • 50 mm monthly rainfall in September in Winnipeg50
    50 mm of monthly rainfall
  • UV (maximum) index 4 (Moderate) in September in Winnipeg4
    4 (Moderate) UV index

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The September 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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More about Canada

How hot is it in Winnipeg in September?

Daytime temperatures usually reach 18°C in Winnipeg in September, falling to 6°C at night.

How sunny is it in Winnipeg in September?

There are normally 6 hours of bright sunshine each day in Winnipeg in September - that's 48% of daylight hours.

Does it rain in Winnipeg in September?

There are usually 9 days with some rain in Winnipeg in September and the average monthly rainfall is 50mm.

Winnipeg September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:44 19:11
Monday, 15th September 2025 06:05 18:41
Tuesday, 30th September 2025 06:28 18:08

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