Orillia (ON) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Orillia.
Climate overview of Orillia
Orillia, Ontario, Canada, sees big temperature differences between seasons, with July peaking at 26°C (79°F) and January dropping to -3°C (27°F).
Rain/snowfall is high, totalling around 1038 mm (41 in) per year. June is the wettest month and February the driest.
Orillia Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Orillia — and find the best time to visit.
Monthly Temperature in Orillia
Visitors to Orillia can expect significant temperature changes throughout the year. Average maximum daytime temperatures range from a comfortable 26°C (79°F) in July, the warmest time of the year, to a very cold -3°C (27°F) during cooler months like January.
At night, you can expect temperatures ranging from 16°C (61°F) in July to around -12°C (10°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Orillia
Orillia is known for its substantial rain/snowfall, with annual precipitation reaching 1038 mm (41 in). Year-round, Orillia has a balanced climate with minimal variation in precipitation. The difference between the wettest month, June, with 103 mm (4.1 in), and the driest month, February, with 65 mm (2.6 in), is minimal. For more details, please visit our Orillia 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 Orillia
The weather does bring rainfall during this period, between 91 mm (3.6 in) and 103 mm (4.1 in). Looking for inspiration on where to travel this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
Frequently asked questions about the climate in Orillia
What is the best time to visit Orillia?
May, July, August and September typically offer the most optimal weather in Orillia. In contrast, January, February, March, November and December tend to have less optimal conditions.
What temperatures can I expect in Orillia?
Daytime highs range from -3°C (27°F) in January to 26°C (79°F) in July. Nighttime lows range from -12°C (10°F) to 16°C (61°F). Temperatures vary considerably through the year.
How much rain does Orillia get?
Annual rainfall is around 1038 mm (41 in). June is the wettest month with 103 mm (4.1 in), while February is the driest with 65 mm (2.6 in).
Orillia 3-Day Forecast
Orillia (ON) 3-Day Forecast
Orillia on the map
Orillia 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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