Port Severn (ON) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Port Severn.
Climate overview of Port Severn
Port Severn, Ontario, Canada, experiences significant temperature variation throughout the year. Summers bring daytime highs of 25°C (77°F) in July, while winters cool to -3°C (27°F) in January.
The city has a wet climate, receiving around 1046 mm (41 in) of rain/snowfall per year. October is the wettest month.
Port Severn Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Port Severn — and find the best time to visit.
Monthly Temperature in Port Severn
Depending on the time of the year, temperatures range from comfortable to very cold in Port Severn. On average, daytime temperatures range from a comfortable 25°C (77°F) in July to a very cold -3°C (27°F) in January.
Nighttime temperatures range from 17°C (63°F) in July to -11°C (12°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Port Severn
Port Severn has a relatively rain/snowy climate with high precipitation levels, averaging 1046 mm (41 in) of rain/snowfall annually. The wettest period in Port Severn occurs in October, which receives around 101 mm (4 in) of precipitation. During the driest month, February, Port Severn experiences moderate snowfall, totaling 65 mm (2.6 in). The consistent precipitation levels throughout the year contribute to a relatively stable climate. For more details, please visit our Port Severn Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Best Time to Visit Port Severn
Rainfall during this time ranges from 91 mm (3.6 in) in July to 100 mm (3.9 in) in August. This means you can expect a mix of sunny days and occasional showers. Seeking the perfect travel destination for this year? We've created a tool that suggests locations matching your desired weather. Let our weather planner guide your travel decisions.
Frequently asked questions about the climate in Port Severn
What is the best time to visit Port Severn?
June, July and September typically offer the most optimal weather in Port Severn. In contrast, January, February, March, April, November and December tend to have less optimal conditions.
What temperatures can I expect in Port Severn?
Daytime highs range from -3°C (27°F) in January to 25°C (77°F) in July. Nighttime lows range from -11°C (12°F) to 17°C (63°F). Temperatures vary considerably through the year.
How much rain does Port Severn get?
Annual rainfall is around 1046 mm (41 in). October is the wettest month with 101 mm (4 in), while February is the driest with 65 mm (2.6 in).
Port Severn 3-Day Forecast
Port Severn (ON) 3-Day Forecast
Port Severn on the map
Port Severn is highlighted — select any city to see its climate.
Popular this month
Where to go in July — average daytime high across popular destinations.
Niagara Falls
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19°C (66°F) 
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