Wiarton (ON) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Wiarton.
Climate overview of Wiarton
Wiarton, Ontario, Canada, sees big temperature differences between seasons, with July peaking at 24°C (75°F) and February dropping to -2°C (28°F).
Rain/snowfall is high, totalling around 1046 mm (41 in) per year. October is the wettest month and March the driest.
Wiarton Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Wiarton — and find the best time to visit.
Monthly Temperature in Wiarton
Visitors to Wiarton can expect significant temperature changes throughout the year. Average maximum daytime temperatures range from a comfortable 24°C (75°F) in July, the warmest time of the year, to a very cold -2°C (28°F) during cooler months like February.
At night, you can expect temperatures ranging from 17°C (63°F) in July to around -9°C (16°F) during February.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Wiarton
Wiarton is known for its substantial rain/snowfall, with annual precipitation reaching 1046 mm (41 in). Year-round, Wiarton has a balanced climate with minimal variation in precipitation. The difference between the wettest month, October, with 104 mm (4.1 in), and the driest month, March, with 64 mm (2.5 in), is minimal. For more details, please visit our Wiarton 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 Wiarton
The weather does bring rainfall during this period, between 80 mm (3.1 in) and 101 mm (4 in). 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 Wiarton
What is the best time to visit Wiarton?
June, July and August typically offer the most optimal weather in Wiarton. In contrast, January, February, March, April, November and December tend to have less optimal conditions.
What temperatures can I expect in Wiarton?
Daytime highs range from -2°C (28°F) in February to 24°C (75°F) in July. Nighttime lows range from -9°C (16°F) to 17°C (63°F). Temperatures vary considerably through the year.
How much rain does Wiarton get?
Annual rainfall is around 1046 mm (41 in). October is the wettest month with 104 mm (4.1 in), while March is the driest with 64 mm (2.5 in).
Wiarton 3-Day Forecast
Wiarton (ON) 3-Day Forecast
Wiarton on the map
Wiarton 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
27°C (81°F) Montréal28°C (82°F) Ottawa27°C (81°F) Quebec City
26°C (79°F) Toronto26°C (79°F) Calgary24°C (75°F) Vancouver22°C (72°F) Whistler
19°C (66°F) 
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