Calgary weather in September 2026

Expect daytime maximum temperatures of 63°F in Calgary, Alberta in September based on long-term weather averages. There are 7 hours of sunshine per day on average with typically 1.7 inches of rainfall in the month.

  • 63°F maximum daytime temperature in September in Calgary63
    63°F max day temperature
  • 7 hours of sunshine per day
  • 8 days with some rainfall in September in Calgary8
    8 days with some rainfall
  • 39°F minimum night-time temperature in September in Calgary39
    39°F min night temperature
  • 13 hours of daylight per day in September in Calgary13
    13 hours of daylight per day
  • No heat & humidity in September in Calgary0
    No heat & humidity
  • 1.7 inches monthly rainfall in September in Calgary1.7
    1.7 inches of monthly rainfall
  • UV (maximum) index 4 (Moderate) in September in Calgary4
    4 (Moderate) UV index

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

Daytime temperatures usually reach 63°F in Calgary in September, falling to 39°F at night.

How sunny is it in Calgary in September?

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

Does it rain in Calgary in September?

There are usually 8 days with some rain in Calgary in September and the average monthly rainfall is 1.7 inches.

Calgary September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Tuesday, 1st September 2026 05:50 19:21
Tuesday, 15th September 2026 06:12 18:50
Wednesday, 30th September 2026 06:35 18:16

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