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Lake Louise weather in September 2025
Expect 11°C daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Lake Louise in September. Check more long-term weather averages for Lake Louise in September before you book your next holiday to Alberta in 2025/2026.
- 1111°C max day temperature
- 5 hours of sunshine per day
- 1313 days with some rainfall
- -1-1°C min night temperature
- 1313 hours of daylight per day
- 0No heat & humidity
- 6868 mm of monthly rainfall
- 55 (Moderate) UV index
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Lake Louise by month
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Recommended for Alberta
The September weather guide for Alberta (Lake Louise) 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)
More about Canada
How warm is it in Lake Louise in September?
Daytime temperatures usually reach 11°C in Lake Louise in September, falling to -1°C at night.
How sunny is it in Lake Louise in September?
There are normally 5 hours of bright sunshine each day in Lake Louise in September - that's 39% of daylight hours.
Does it rain in Lake Louise in September?
There are usually 13 days with some rain in Lake Louise in September and the average monthly rainfall is 68mm.
Lake Louise September sunrise & sunset times
Browse the sunrise and sunset times for Lake Louise in September 2025. Select a month to view Lake Louise sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
Date | Sunrise times | Sunset times |
---|---|---|
Monday, 1st September 2025 | 07:58 | 21:30 |
Monday, 15th September 2025 | 08:21 | 20:58 |
Tuesday, 30th September 2025 | 08:45 | 20:24 |
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