Saint-Clair Weather & Climate: Best Time to Visit

In Saint-Clair, temperatures differ significantly between summer and winter months. Average daytime temperatures reach a comfortable 27°C (81°F) in July. In January, the coolest month of the year, temperatures drop to a chilly 7°C (45°F).

At night, temperatures range from around 15°C (59°F) in July to 0°C (32°F) in January.

Check out our detailed temperature page for more information.

Temperature ranges by month

Saint-Clair experiences significant rain/snowfall throughout the year, averaging 1086 mm (43 in) of precipitation annually. Saint-Clair experiences moderate seasonal variation in rainfall, with monthly averages ranging from 115 mm (4.5 in) in October, the wettest month, and 65 mm (2.6 in) in February, the driest month. For more details, please visit our Saint-Clair Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

Saint-Clair can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 9.2 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 2.5 hours of sunlight per day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

The relative humidity is high throughout the year in Saint-Clair.

The city experiences its highest humidity in December, reaching 82%. In July, the humidity drops to its lowest level at 67%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year