Weather in Montreal
What's the weather like in Montreal?
Montreal has a wide swing between hot summers and cold winters and moderate rainfall spread across the year. Average daytime highs range from -5°C (23°F) in January to 26°C (79°F) in July, with overnight lows around -13°C (8°F) and 18°C (64°F) respectively.
For comfortable sightseeing temperatures (18–26°C daytime highs), the best months to visit Montreal are May through September.
Quick facts
- Country
- 🇨🇦 Canada
- Region
- North America
- Time zone
- America/Montreal
- Coordinates
- 45.502, -73.567
Monthly climate
Long-run averages for each month of the year.
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | -5°C / 23°F | -13°C / 8°F | 74 mm | 17 | — |
| February | -3°C / 26°F | -13°C / 9°F | 80 mm | 17 | — |
| March | 2°C / 36°F | -7°C / 20°F | 81 mm | 18 | — |
| April | 11°C / 51°F | 1°C / 33°F | 120 mm | 17 | — |
| May | 19°C / 67°F | 9°C / 47°F | 70 mm | 16 | — |
| June | 24°C / 74°F | 14°C / 58°F | 121 mm | 19 | — |
| July | 26°C / 79°F | 18°C / 64°F | 95 mm | 20 | — |
| August | 25°C / 77°F | 17°C / 63°F | 109 mm | 20 | — |
| September | 21°C / 70°F | 13°C / 55°F | 80 mm | 14 | — |
| October | 14°C / 57°F | 7°C / 44°F | 135 mm | 18 | — |
| November | 6°C / 42°F | -1°C / 30°F | 80 mm | 17 | — |
| December | 0°C / 31°F | -7°C / 19°F | 91 mm | 16 | — |
Montreal by month
Detailed weather for any specific month:
Cities with a similar climate to Montreal
Frequently asked questions
When is the best time to visit Montreal?
The most comfortable months in Montreal are usually May, June, September, when average highs sit near 18–26°C (64–79°F) with relatively little rain. See the full month-by-month breakdown for the exact figures.
What is the hottest month in Montreal?
July is typically the hottest month in Montreal, averaging a high of 26°C (79°F).
What is the coldest month in Montreal?
January is usually the coldest, with average lows around -13°C (8°F).
Does it snow in Montreal?
Snow is rare in Montreal; the climate data shows essentially no snowfall across the year.
Live forecast, sunrise/sunset, and more.