Saint-Denis-sur-Richelieu (QC) Weather & Climate: Best Time to Visit

Depending on the time of the year, temperatures range from comfortable to very cold in Saint-Denis-sur-Richelieu. Average daytime temperatures reach a comfortable 27°C (81°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 16°C (61°F) in July to -15°C (5°F) in January.

Check out our detailed temperature page for more information.

Temperature ranges by month

Saint-Denis-sur-Richelieu has a relatively rain/snowy climate with high precipitation levels, averaging 1161 mm (46 in) of rain/snowfall annually. Despite minor fluctuations, Saint-Denis-sur-Richelieu enjoys fairly consistent precipitation throughout the year. In October, you can expect around 113 mm (4.4 in) of precipitation, while in February, Saint-Denis-sur-Richelieu receives about 73 mm (2.9 in). For more details, please visit our Saint-Denis-sur-Richelieu Precipitation page.

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

The average number of days each month with precipitation

Saint-Denis-sur-Richelieu 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

The relative humidity is high throughout the year in Saint-Denis-sur-Richelieu.

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