Climate Insights for Summerside

The climate in Summerside is cool. The average annual temperature is 7°C and approximately 1,270 mm of precipitation falls per year. Summerside receives a notable amount of rainfall throughout the year, including during its driest month. Summerside is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, September. The coldest months are February, January, March, when temperatures can drop to -8°C. Summerside experiences heavy snowfall, typically from January through December.The climate in Summerside is cool. The average annual temperature is 45°F and approximately 50 in of precipitation falls per year. Summerside receives a notable amount of rainfall throughout the year, including during its driest month. Summerside is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, September. The coldest months are February, January, March, when temperatures can drop to 17°F. Summerside experiences heavy snowfall, typically from January through December.

Temperatures in Summerside vary considerably across the year, with a 32°C difference between the coldest and warmest months. July is the warmest month, though highs remain moderate at 24°C with a mean of 19°C. The coldest month is February, when overnight lows fall to -8°C and the daily average is -4°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows. The sharpest temperature change occurs between May and June, with a 6°C shift in average temperatures.Temperatures in Summerside vary considerably across the year, with a 58°F difference between the coldest and warmest months. July is the warmest month, though highs remain moderate at 75°F with a mean of 67°F. The coldest month is February, when overnight lows fall to 17°F and the daily average is 24°F. Daily temperature variation is modest, with an average difference of 14°F between highs and lows. The sharpest temperature change occurs between May and June, with a 11°F shift in average temperatures.

Summerside is a fairly wet location, receiving approximately 1,270 mm of precipitation annually, which averages out to around 106 mm per month. The wettest month is November, averaging 135 mm of rainfall. December and January also tend to see above-average precipitation. The driest month is May, with just 78 mm. That's 57 mm less than November, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around. Summerside receives heavy snowfall, accumulating around 263cm annually from January through December. The snowiest month is February, with approximately 62cm. Winter travel should account for significant snow cover.Summerside is a fairly wet location, receiving approximately 50 in of precipitation annually, which averages out to around 4.2 in per month. The wettest month is November, averaging 5.3 in of rainfall. December and January also tend to see above-average precipitation. The driest month is May, with just 3.1 in. That's 2.2 in less than November, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around. Summerside receives heavy snowfall, accumulating around 104in annually from January through December. The snowiest month is February, with approximately 24in. Winter travel should account for significant snow cover.

Summerside is mildly breezy, with an average annual wind speed of 14km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is December, averaging 16km/h, though still comfortable for most outdoor activities. The calmest conditions occur in July, with average winds dropping to 11km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 5km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 16km/h in winter, 15km/h in spring, 12km/h in summer, 14km/h in autumn.Summerside is moderately windy, with an average annual wind speed of 9mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is December, averaging 10mph, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in July, with average winds dropping to 7mph, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 3mph gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 10mph in winter, 9mph in spring, 7mph in summer, 9mph in autumn.

The best time to visit Summerside is during July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 18°C with modest rainfall averaging 88 mm per month. By contrast, February can be quite cold with temperatures dropping to -8°C. Despite being the best months overall, some rain is still likely. Pack a waterproof layer and plan a mix of indoor and outdoor activities.The best time to visit Summerside is during July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 64°F with modest rainfall averaging 3.5 in per month. By contrast, February can be quite cold with temperatures dropping to 17°F. Despite being the best months overall, some rain is still likely. Pack a waterproof layer and plan a mix of indoor and outdoor activities.

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