About Summerside, 09's Climate & Weather History

With a population of around 14,800, Summerside sits in Prince Edward Island, Canada. The city operates in the America/Halifax time zone.

In 2025, Summerside recorded an average annual temperature of 45°F. The hottest temperatures reached 90°F in August; the coolest were -1°F in February. Total precipitation for the year was 39 inches, with the wettest month being March. Snowfall for the year totaled approximately 23 inches.