- Kids stay & eat for free at Marriot Bonvoy
- Destinations include Europe, Middle East & Africa
- Valid for up to 2 adults & 2 kids aged up to 12
Montreal weather in September 2025
Expect 68°F daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Montreal in September. Check more long-term weather averages for Montreal in September before you book your next holiday to Quebec in 2025/2026.
- 6868°F max day temperature
- 6 hours of sunshine per day
- 1111 days with some rainfall
- 5050°F min night temperature
- 1212 hours of daylight per day
- 0No heat & humidity
- 3.73.7 inches of monthly rainfall
- 55 (Moderate) UV index
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Recommended for Quebec
The September weather guide for Quebec (Montreal) 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) | Imperial (°F)
More about Canada
How hot is it in Montreal in September?
Daytime temperatures usually reach 68°F in Montreal in September, falling to 50°F at night.
How sunny is it in Montreal in September?
There are normally 6 hours of bright sunshine each day in Montreal in September - that's 46% of daylight hours.
Does it rain in Montreal in September?
There are usually 11 days with some rain in Montreal in September and the average monthly rainfall is 3.7 inches.
What is the chance of a hurricane in Montreal in September?
On average less than 1 day in September in Montreal is likely to be affected by the passage of one or more tropical storms.
Montreal September sunrise & sunset times
Browse the sunrise and sunset times for Montreal in September 2025. Select a month to view Montreal sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
Date | Sunrise times | Sunset times |
---|---|---|
Monday, 1st September 2025 | 05:16 | 18:31 |
Monday, 15th September 2025 | 05:33 | 18:05 |
Tuesday, 30th September 2025 | 05:52 | 17:36 |
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