Western Australia (Perth)
December
Weather in Western Australia for December 2026
Your guide to Western Australia weather in December - trends and predictions
In general, the average temperature in Western Australia at the beginning of December is 27.6 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 31.6 °C by the end of December.
With an average of 2 rainy days, Western Australia experiences minimal rainfall in December.
Is December a good time to visit Western Australia? check out the best time to travel to Western Australia page.
✨ Is December a good time to visit Western Australia? – Ask the AI Weatherman
Temperatures
Rain 🌧️
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29
Dry days
2
Rainy days
0
Snow days
30°/18°
Temperatures
27 km/h
Avg max wind
45 %
Avg humidity
Western Australia Weather December
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What’s the Weather Like in Western Australia This December?
Discover the average temperatures and weather trends across Western Australia’s cities this December.
Temperatures trend during December in Western Australia
See the weather trend as well as the moving average line
December weather in Western Australia day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Dec. |  Sunny | 28° /17° | 0.3 mm | 10 | |
| 2 Dec. | Sunny | 25° /16° | 0.5 mm | 9 | |
| 3 Dec. | Sunny | 26° /16° | 0.1 mm | 10 | |
| 4 Dec. | Sunny | 27° /16° | 0 mm | 10 | |
| 5 Dec. | Sunny | 28° /16° | 0 mm | 10 | |
| 6 Dec. | Sunny | 29° /16° | 0 mm | 10 | |
| 7 Dec. | Sunny | 30° /16° | 0.4 mm | 10 | |
| 8 Dec. | Sunny | 31° /17° | 0.8 mm | 10 | |
| 9 Dec. | Sunny | 29° /18° | 0 mm | 10 | |
| 10 Dec. | Sunny | 29° /18° | 0.2 mm | 10 | |
| 11 Dec. | Sunny | 31° /19° | 0.5 mm | 11 | |
| 12 Dec. | Sunny | 31° /19° | 0 mm | 11 | |
| 13 Dec. |  Patchy rain possible | 28° /17° | 0.4 mm | 10 | |
| 14 Dec. | Sunny | 28° /17° | 0.8 mm | 10 | |
| 15 Dec. |  Partly cloudy | 29° /17° | 0 mm | 10 | |
| 16 Dec. | Sunny | 28° /17° | 0.1 mm | 10 | |
| 17 Dec. | Sunny | 28° /18° | 0.2 mm | 10 | |
| 18 Dec. | Sunny | 29° /17° | 0.2 mm | 10 | |
| 19 Dec. | Sunny | 31° /18° | 0.5 mm | 11 | |
| 20 Dec. | Sunny | 32° /18° | 0.1 mm | 11 | |
| 21 Dec. | Sunny | 33° /20° | 0 mm | 12 | |
| 22 Dec. | Sunny | 33° /20° | 0 mm | 12 | |
| 23 Dec. | Sunny | 36° /21° | 0 mm | 12 | |
| 24 Dec. | Sunny | 36° /21° | 0 mm | 12 | |
| 25 Dec. | Sunny | 35° /22° | 0 mm | 12 | |
| 26 Dec. | Sunny | 29° /19° | 0.1 mm | 11 | |
| 27 Dec. | Sunny | 29° /17° | 0 mm | 11 | |
| 28 Dec. | Sunny | 32° /17° | 0 mm | 11 | |
| 29 Dec. | Sunny | 33° /20° | 0.1 mm | 11 | |
| 30 Dec. | Sunny | 34° /20° | 0 mm | 11 | |
| 31 Dec. | Sunny | 31° /19° | 0 mm | 11 | |
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Important Notice
Our weather forecast for Western Australia in December is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Western Australia forecast closer to your planned date for the most up-to-date weather information.
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Western Australia in December - FAQ
What are the expected maximum and minimum temperatures in Western Australia during December?
Expect warm days with temperatures around 30°, cooling to mild conditions of 18° after sunset. Perfect for those who enjoy warm weather.
How much rainfall should be expected in Western Australia during December?
Rainfall in Western Australia during December is rare to nonexistent, with the total expected rainfall being less than 10 mm and approximately 2 days seeing any precipitation. Planning without the concern for rain is generally straightforward during this very dry period.
What are the typical wind conditions in Western Australia during December?
The average wind speed in Western Australia during December is 27 km/h, suggesting breezy to windy conditions, depending on your activities.
UV exposure in Western Australia during December
Stay informed about UV levels for safe outdoor activities throughout the month of December ☀️
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