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Alberta weather in September 2025
Expect 17°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Alberta in September. Check more long-term weather averages for Alberta in September before you book your next holiday to Alberta in 2025/2026.
- 1717°C max day temperature
- 7 hours of sunshine per day
- 88 days with some rainfall
- 44°C min night temperature
- 1313 hours of daylight per day
- 0No heat & humidity
- 4444 mm of monthly rainfall
- 44 (Moderate) UV index
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Recommended for Alberta
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.
Top Alberta destinations
Below are average maximum temperatures at popular countries, regions and places in Alberta in September. Select a holiday destination to see more weather parameters.
All Alberta destinations
- Banff
- Calgary
- Edmonton
- Fort McMurray
- Fort Vermilion
- Grande Prairie
- Jasper
- Lake Louise
- Medicine Hat
- Rainbow Lake
Metric (°C / mm) | Imperial (°F / inches)
More about Canada
How warm is it in Alberta in September?
Daytime temperatures usually reach 17°C in Calgary, Alberta in September, falling to 4°C at night.
How sunny is it in Alberta in September?
There are normally 7 hours of bright sunshine each day in Calgary, Alberta in September - that's 52% of daylight hours.
Does it rain in Alberta in September?
There are usually 8 days with some rain in Calgary, Alberta in September and the average monthly rainfall is 44mm.
Alberta September sunrise & sunset times
Browse the sunrise and sunset times for Alberta in September 2025. Select a month to view Alberta sunrise and sunset times for the next 12 months. The Alberta sunrise and sunset times shown below are for Calgary.
JanFebMarAprMayJunJulAugSepOctNovDec
Date | Sunrise times | Sunset times |
---|---|---|
Monday, 1st September 2025 | 05:50 | 19:21 |
Monday, 15th September 2025 | 06:12 | 18:49 |
Tuesday, 30th September 2025 | 06:36 | 18:15 |
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