Weather in Montréal in September
Montréal, Canada averages a high of 19.6°C (67.3°F) and low of 11.5°C (52.7°F) in September, with 9 rain days and 9.3 hours of daily sunshine. Travel score: 75.4/100 (Good). The best time to visit Montréal is August.
High
20°C67°F
Low
12°C53°F
🌧️
9
rain days
☀️
9.3
hrs/day sunshine
💧
74%
humidity
75— Good
September in Montréal is mild and occasionally wet — good for most activities.
What are the average temperatures in Montréal?
How much does it rain in Montréal in September?
Montréal receives an average of 92.8mm of rainfall across 9 rainy days in September. The annual total is 1075.9mm.
What should I pack for Montréal in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
🧥
Mix of light and warm layers
Mild temperatures around 20°C
Recommended
🧥
Light rain jacket
Some rainy days expected (9 days)
☔
Umbrella
Be prepared for occasional showers
🧴
Sunscreen
Sun protection is still recommended
🕶️
Sunglasses
Useful for sunny periods
🎉Visiting Canada in September?
Don't miss any public holidays — check before you book!
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Data based on 1994–2024 averages · Last updated: 2024-12-31