Calgary in September
The weather in September
In September, Calgary averages daytime highs of 19° and night-time lows of 5° — mild weather by day. Expect around 48 mm of precipitation spread over about 6 wet days, with average cloud cover near 32%.
Days are 4.8° cooler than in August on average, and October is cooler again by about 6.7°.
September scores 86/100 — excellent conditions for sightseeing — and ranks 1st of the twelve months for Calgary.
Around the middle of the month the sun rises at 07:12 and sets at 19:52 local time, giving 12 h 40 min of daylight. Days shorten by 111 minutes over the month.
Why 86/100?
How the score for September is builtComfort peaks for daytime highs between 18° and 25°C (64–77°F).
Around Calgary this month
Chestermere
Airdrie
Canada's best in September
Swift Current
Calgary in September: quick answers
Is September a good time to visit Calgary?
September scores 86/100 for Calgary, which we rate as excellent. Average highs are 19°C with 6 wet days.
How warm is Calgary in September?
Daytime highs average 19°C and night-time lows 5°C in September.
Does it rain a lot in Calgary in September?
Calgary receives about 48 mm of precipitation in September, falling on around 6 days.