Climate Insights for Montmagny

The climate in Montmagny is cool. The average annual temperature is 5°C and approximately 1186mm of precipitation falls per year. Montmagny receives a notable amount of rainfall throughout the year, including during its driest month. Montmagny is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, June. The coldest months are January, February, December, when temperatures can drop to -13°C. Montmagny experiences heavy snowfall, typically from January through December.

Montmagny has a wide annual temperature range, spanning 37°C from the coldest to warmest months. July is the warmest month, though highs remain moderate at 24°C with a mean of 20°C. The coldest month is January, when overnight lows fall to -13°C and the daily average is -9°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows. The sharpest temperature change occurs between April and May, with a 9°C shift in average temperatures.

Montmagny is a moderately rainy area, receiving approximately 1186mm of precipitation annually, which averages out to around 99mm per month. The wettest month is June, averaging 119mm of rainfall. October and August also tend to see above-average precipitation. The driest month is September, with just 71mm. That's 48mm less than June, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around. Montmagny receives heavy snowfall, accumulating around 355cm annually from January through December. The snowiest month is January, with approximately 75cm. Winter travel should account for significant snow cover.

Montmagny is relatively calm, with an average annual wind speed of 3km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 3km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 3km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 0km/h between the calmest and windiest months.

It is currently summer in Montmagny, which began on June 21, 2026. Montmagny is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in July at around 24°C, while the coldest stretch bottoms out in January near -13°C. Autumn is next, beginning on September 23, 2026 (14 days from now).

The table below shows monthly climate averages for Montmagny based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.