Grande Prairie weather in September 2026

Expect daytime maximum temperatures of 16°C in Grande Prairie, Alberta in September based on long-term weather averages. There are 6 hours of sunshine per day on average with 11 days with some rainfall and typically 41 mm of rainfall in the month.

  • 16°C maximum daytime temperature in September in Grande Prairie16
    16°C max day temperature
  • 6 hours of sunshine per day
  • 11 days with some rainfall in September in Grande Prairie11
    11 days with some rainfall
  • 3°C minimum night-time temperature in September in Grande Prairie3
    3°C min night temperature
  • 13 hours of daylight per day in September in Grande Prairie13
    13 hours of daylight per day
  • No heat & humidity in September in Grande Prairie0
    No heat & humidity
  • 41 mm monthly rainfall in September in Grande Prairie41
    41 mm of monthly rainfall
  • UV (maximum) index 3 (Moderate) in September in Grande Prairie3
    3 (Moderate) UV index

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The September weather guide for Alberta (Grande Prairie) 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 warm is it in Grande Prairie in September?

Daytime temperatures usually reach 17°C in Grande Prairie in September, falling to 4°C at night.

How sunny is it in Grande Prairie in September?

There are normally 7 hours of bright sunshine each day in Grande Prairie in September - that's 52% of daylight hours.

Does it rain in Grande Prairie in September?

There are usually 8 days with some rain in Grande Prairie in September and the average monthly rainfall is 44mm.

Grande Prairie September sunrise & sunset times

Browse the sunrise and sunset times for Grande Prairie in September 2026. Select a month to view Grande Prairie sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Tuesday, 1st September 2026 06:02 19:47
Tuesday, 15th September 2026 06:28 19:11
Wednesday, 30th September 2026 06:56 18:33

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