Climate Insights for Côte-Saint-Luc

The climate in Côte-Saint-Luc is cool. The average annual temperature is 8°C and approximately 1154mm of precipitation falls per year. Côte-Saint-Luc receives a notable amount of rainfall throughout the year, including during its driest month. Côte-Saint-Luc 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 February, January, December, when temperatures can drop to -11°C. Light snow can occur between January and December.

Côte-Saint-Luc has a wide annual temperature range, spanning 38°C from the coldest to warmest months. The warmest month is July, when average highs reach 27°C and the mean temperature sits around 22°C. The coldest month is February, when overnight lows fall to -11°C and the daily average is -7°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 8°C shift in average temperatures.

Côte-Saint-Luc is a moderately rainy area, receiving approximately 1154mm of precipitation annually, which averages out to around 96mm per month. The wettest month is April, averaging 117mm of rainfall. October and June also tend to see above-average precipitation. The driest month is September, with just 68mm. That's 49mm less than April, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around. Light snowfall can occur between January and December, totalling around 11cm annually. December is the snowiest month with approximately 3cm.

Côte-Saint-Luc is relatively calm, with an average annual wind speed of 5km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is March, averaging 5km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 4km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 1km/h between the calmest and windiest months.

It is currently spring in Côte-Saint-Luc, which began on March 20, 2026. Côte-Saint-Luc 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 27°C, while the coldest stretch bottoms out in February near -11°C. Summer is next, beginning on June 21, 2026 — 10 days from now.

The best time to visit Côte-Saint-Luc is during September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 18°C with modest rainfall averaging 68mm per month. By contrast, July can be uncomfortably hot with highs reaching 27°C, while February is the coldest period with lows dropping to -11°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Côte-Saint-Luc 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.