Montréal (QC) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Montréal.
Climate overview of Montréal
Montréal Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Montréal - and find the best time to visit.
Monthly Temperature in Montréal
Depending on the time of the year, temperatures range from comfortable to very cold in Montréal. Average daytime temperatures reach a comfortable 28°C (82°F) in July. In January, the coolest month of the year, temperatures drop to a very cold -4°C (25°F).
At night, temperatures range from around 17°C (63°F) in July to -14°C (7°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Montréal
Montréal has a relatively rain/snowy climate with high precipitation levels, averaging 1159 mm (46 in) of rain/snowfall annually. Despite minor fluctuations, Montréal enjoys fairly consistent precipitation throughout the year. In October, you can expect around 114 mm (4.5 in) of precipitation, while in February, Montréal receives about 72 mm (2.8 in). For more details, please visit our Montréal Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Montréal
Montréal can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 9.1 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 2.7 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Water Temperature in Montréal
The mean water temperature over the year ranges from 3°C (37°F) in February to 21°C (70°F) in August.
Water temperature over the year
Humidity in Montréal by Month
The relative humidity is high throughout the year in Montréal.
The city experiences its highest humidity in December, reaching 71%. In May, the humidity drops to its lowest level at 51%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Wind Speed in Montréal
The mean wind speed over the year ranges from 5 m/s (10 knots) in June, July, August and September to 7 m/s (14 knots) in January, February, March and December. What does this mean?
The mean monthly wind speed over the year (meters per second)
Best Time to Visit Montréal
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: May, June, July, August and September
- Warmest weather: July and August
- Most sunshine: July
- Best for swimming: August and September.
- Seasonal pattern: Warm summers and very cold winters
- Coldest conditions: January, with freezing nights around -14°C (7°F).
Frequently asked questions about the climate in Montréal
What is the best time to visit Montréal?
May, June, July, August and September typically offer the most optimal weather in Montréal. In contrast, January, February, March, April, November and December tend to have less optimal conditions. Montréal has warm summers and very cold winters.
What temperatures can I expect in Montréal?
Daytime highs range from -4°C (25°F) in January to 28°C (82°F) in July. Nighttime lows range from -14°C (7°F) to 17°C (63°F). Temperatures vary considerably through the year.
How much rain does Montréal get?
Annual rainfall is around 1159 mm (46 in). October is the wettest month with 114 mm (4.5 in), while February is the driest with 72 mm (2.8 in).
How sunny is Montréal?
Montréal receives around 2,042 hours of sunshine per year. July is the sunniest month with 272 hours, while December is the cloudiest with just 80 hours. Overall, Montréal enjoys abundant sunshine.
Montréal 3-Day Forecast
Montréal on the map
Montréal is highlighted - select any city to see its climate.
Popular this month
Where to go in July - average daytime high across popular destinations.
Niagara Falls
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19°C (66°F) 
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