Saint-Jean-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-Jean-sur-Richelieu. Typically, average maximum daytime temperatures range from a comfortable 28°C (82°F) in July to a very cold -3°C (27°F) in the coolest month, January.

Nights vary from 16°C (61°F) in July to around -13°C (9°F) during the colder months.

Check out our detailed temperature page for more information.

Temperature ranges by month

Saint-Jean-sur-Richelieu has a relatively rain/snowy climate with high precipitation levels, averaging 1195 mm (47 in) of rain/snowfall annually. Saint-Jean-sur-Richelieu offers a pleasant mix of wetter and slightly drier months. The difference in precipitation between the wettest month June (124 mm (4.9 in)) and the driest month February (72 mm (2.8 in)) is not too significant. For more details, please visit our Saint-Jean-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

For those who appreciate different seasons, Saint-Jean-sur-Richelieu serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 9.1 hours of sunshine daily, and embrace the darker days in December, offering only 2.7 hours of daily sunlight.

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-Jean-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