Orillia Weather in December

What's the weather like in Orillia (Ontario) in December 2024?

The climate in Orillia during December can be summarized as cold and damp.

December is in the winter in Orillia and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a freezing -1°C (30°F), whilst at night -9°C (16°F) is normal.

Orillia weather averages (imperial / metric)
Daytime temperature -1.2°C 29.9°F
Nightly temperature -9.1°C 15.7°F
Average temperature -5.1°C 22.8°F
Daily sunshine 2.3 hrs
Avg rainfall 101 mm 4 ins
Rainy days 17 days
Sea temperature 5.2°C 41.3°F
Humidity 83%
Windspeed 16.6kph 10 mph

On average December is the wettest month of the year in Orillia with around 101mm 4 inches of rain making it a damp time to visit. This rainfall is typically spread over 17 days, although this may vary considerably.

On the flip side this corresponds to an average of 2.3 hours of sunshine per day.

December temperatures in Orillia

Orillia average temperature in December

December rainfall

Orillia average rain in December

December hourly sunshine

Orillia average rain in December

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Orillia in December 2024.

Other monthly averages

Best places to visit in December

UV index Best time to go?

Orillia weather stats

Orillia weather statistics
Hottest month: July 25.5°C 77.9°F
Driest month: April 63mm 2.5ins
Sunniest month: July 10hrs
Coldest month: January -4.5°C 23.9°F
Wettest month: December 101mm 4ins
Map showing location of Orillia (44.60868, -79.42068) Orillia map pin © Google

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