Montreal Weather in September
Canada · 30-year monthly averages
👍 Good time to visit
September in Montreal is pleasantly warm, with average daytime highs around 20°C (67°F) and nighttime lows near 12°C (53°F). Expect roughly 108mm of precipitation, with a moderate amount of rain.
Avg high
20°C
67°F
Avg low
12°C
53°F
Rainfall
108mm
moderate
Mean temp
15°C
59°F
🎒 What to pack
- light layers
- comfortable walking shoes
September vs the rest of the year
FAQ
- How hot is Montreal in September?
- September in Montreal is pleasantly warm, with average daytime highs around 20°C (67°F) and nighttime lows near 12°C (53°F). Expect roughly 108mm of precipitation, with a moderate amount of rain.
- Does it rain a lot in Montreal in September?
- Montreal sees around 108mm of precipitation in September on average — moderate by global standards.
- Is September a good time to visit Montreal?
- September is a good month to visit Montreal, with generally agreeable conditions.