Weather in Australia for December 2026
In general, the average temperature in Australia at the beginning of December is 24.1 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 25.3 °C by the end of December.
Australia experiences moderate rainfall in December, with an average of 8 rainy days and a total precipitation of 56.4 mm.
Is December a good time to visit Australia? check out the best time to travel to Australia page.
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Australia Weather December
What’s the Weather Like in Australia This December?
Temperatures trend during December in Australia
December weather in Australia day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Dec. |  Light rain | 21° /13° | 2.5 mm | 7 | |
| 2 Dec. |  Moderate or heavy rain shower | 23° /12° | 6.5 mm | 8 | |
| 3 Dec. |  Cloudy | 26° /12° | 0.6 mm | 8 | |
| 4 Dec. |  Partly cloudy | 28° /13° | 0.1 mm | 9 | |
| 5 Dec. |  Sunny | 26° /13° | 0.6 mm | 9 | |
| 6 Dec. | Cloudy | 24° /13° | 0.7 mm | 8 | |
| 7 Dec. | Light rain | 21° /11° | 2.5 mm | 8 | |
| 8 Dec. |  Patchy rain possible | 23° /12° | 1.3 mm | 8 | |
| 9 Dec. | Light rain | 20° /11° | 3.7 mm | 7 | |
| 10 Dec. |  Overcast | 20° /11° | 0.2 mm | 7 | |
| 11 Dec. | Patchy rain possible | 23° /12° | 1.6 mm | 8 | |
| 12 Dec. | Light rain | 26° /13° | 5 mm | 9 | |
| 13 Dec. | Patchy rain possible | 28° /14° | 1.2 mm | 9 | |
| 14 Dec. | Patchy rain possible | 24° /13° | 1.1 mm | 8 | |
| 15 Dec. | Partly cloudy | 23° /13° | 0.4 mm | 8 | |
| 16 Dec. | Cloudy | 25° /13° | 0 mm | 8 | |
| 17 Dec. | Sunny | 28° /12° | 0.9 mm | 9 | |
| 18 Dec. | Partly cloudy | 29° /14° | 0.1 mm | 9 | |
| 19 Dec. | Light rain shower | 25° /13° | 1.9 mm | 8 | |
| 20 Dec. | Sunny | 26° /13° | 0.3 mm | 9 | |
| 21 Dec. | Light rain | 25° /13° | 4.3 mm | 8 | |
| 22 Dec. | Light rain | 22° /13° | 6.6 mm | 8 | |
| 23 Dec. | Patchy rain possible | 21° /12° | 0.5 mm | 8 | |
| 24 Dec. | Patchy rain possible | 22° /12° | 1.4 mm | 8 | |
| 25 Dec. | Light rain | 23° /13° | 8.4 mm | 7 | |
| 26 Dec. | Patchy rain possible | 27° /14° | 1.6 mm | 9 | |
| 27 Dec. | Patchy rain possible | 26° /14° | 1.3 mm | 9 | |
| 28 Dec. | Partly cloudy | 25° /13° | 0.7 mm | 8 | |
| 29 Dec. | Sunny | 24° /13° | 0.1 mm | 8 | |
| 30 Dec. | Sunny | 27° /13° | 0.1 mm | 9 | |
| 31 Dec. | Patchy rain possible | 26° /15° | 0.1 mm | 8 | |
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Guide for Australia in December
In December, Australia experiences a range of weather conditions due to its vast size and diverse landscapes. At the beginning of the month, the southern regions, including cities like Melbourne and Sydney, typically enjoy mild to warm temperatures with occasional showers.
The average daytime temperatures in these areas can range from 20° to 28°, making it an ideal time for outdoor activities and beach visits. However, it's important to note that the weather can be quite changeable, so it's advisable to pack layers and be prepared for sudden shifts in conditions.
By the end of December, the northern parts of Australia, such as Darwin and Cairns, enter the wet season. This period is characterized by high humidity and frequent heavy rainfall, creating lush, tropical landscapes.
Daytime temperatures in these regions can reach 32° or higher, providing a perfect environment for those seeking a tropical escape. However, travelers should be aware of the potential for tropical storms and plan their activities accordingly.
Overall, December in Australia offers a diverse range of weather experiences, from mild and sunny in the south to hot and humid in the north, catering to a variety of preferences for holidaymakers.