Jasper weather in September 2025

Expect daytime maximum temperatures of 15°C in Jasper in September based on long-term weather averages. There are 5 hours of sunshine per day on average with 12 days with some rainfall and typically 52 mm of rainfall in the month.

  • 15°C maximum daytime temperature in September in Jasper15
    15°C max day temperature
  • 5 hours of sunshine per day
  • 12 days with some rainfall in September in Jasper12
    12 days with some rainfall
  • 1°C minimum night-time temperature in September in Jasper1
    1°C min night temperature
  • 13 hours of daylight per day in September in Jasper13
    13 hours of daylight per day
  • No heat & humidity in September in Jasper0
    No heat & humidity
  • 52 mm monthly rainfall in September in Jasper52
    52 mm of monthly rainfall
  • UV (maximum) index 4 (Moderate) in September in Jasper4
    4 (Moderate) UV index

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The September weather guide for Alberta (Jasper) 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 Jasper in September?

Daytime temperatures usually reach 15°C in Jasper in September, falling to 1°C at night.

How sunny is it in Jasper in September?

There are normally 5 hours of bright sunshine each day in Jasper in September - that's 40% of daylight hours.

Does it rain in Jasper in September?

There are usually 12 days with some rain in Jasper in September and the average monthly rainfall is 52mm.

Jasper September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:03 19:40
Monday, 15th September 2025 06:27 19:06
Tuesday, 30th September 2025 06:53 18:31

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