Whistler Weather in December
What's the weather like in Whistler (British Columbia) in December 2025?
The climate in Whistler during December can be summarized as cold and very wet.
December is in the winter in Whistler and is typically the 2nd coldest month of the year. Daytime maximum temperatures average around a freezing -2°C (29°F), whilst at night -8°C (18°F) is normal.
| Daytime temperature | -1.6°C 29.1°F |
|---|---|
| Nightly temperature | -7.6°C 18.3°F |
| Average temperature | -4.6°C 23.7°F |
| Daily sunshine | 1.9 hrs |
| Avg rainfall | 216 mm 8.5 ins |
| Rainy days | 17 days |
| Sea temperature | 7.5°C 45.6°F |
| Humidity | 83% |
| Windspeed | 12.6kph 8 mph |
On average December is the wettest month of the year in Whistler with around 216mm 8.5 inches of rain making it a very wet 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 1.9 hours of sunshine per day.
December temperatures in Whistler
December rainfall
December hourly sunshine
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 Whistler in December 2025.
Other monthly averages
Best places to visit in December
Whistler weather stats
| Hottest month: | August | 16.8°C 62.2°F |
|---|---|---|
| Driest month: | July | 66mm 2.6ins |
| Sunniest month: | July | 9hrs |
| Coldest month: | January | -2.1°C 28.2°F |
| Wettest month: | December | 216mm 8.5ins |
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