The climate in Wa during December can be summarized as hot and very dry.
December is in the winter in Wa and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a warm 34°C (94°F), whilst at night 19°C (67°F) is normal.
Daytime temperature | 34.4°C 93.8°F |
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Nightly temperature | 19.3°C 66.7°F |
Average temperature | 26.8°C 80.2°F |
Daily sunshine | 9.1 hrs |
Avg rainfall | 5 mm 0.2 ins |
Rainy days | 3 days |
Sea temperature | 26.9°C 80.4°F |
Humidity | 37% |
Windspeed | 4.3kph 3 mph |
On average December is the 2nd driest month of the year in Wa with around 5mm 0.2 inches of rain making it a very dry time to visit.
On the flip side this corresponds to an average of 9.1 hours of sunshine per day.
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 Wa in December 2025.
Best places to visit in December
Hottest month: | March | 37°C 98.6°F |
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Driest month: | January | 3mm 0.1ins |
Sunniest month: | January | 9.5hrs |
Coldest month: | August | 29.2°C 84.6°F |
Wettest month: | August | 197mm 7.8ins |