South Australia (Adelaide)
December
Weather in South Australia for December 2025
Your guide to South Australia weather in December - trends and predictions
Until now, December 2025 in South Australia is slightly cooler than the historical average by -0.9 °C.
The forecast for the upcoming days in South Australia predicts a temperature of 26.9 °C, which is slightly above the historical average.
In general, the average temperature in South Australia at the beginning of December is 24.6 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 29.6 °C by the end of December.
With an average of 4 rainy days, South Australia experiences minimal rainfall in December.
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Temperatures
Rain 🌧️
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27
Dry days
4
Rainy days
0
Snow days
24°/14°
Temperatures
21 km/h
Avg max wind
56 %
Avg humidity
South Australia Weather December
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What’s the Weather Like in South Australia This December?
Discover the average temperatures and weather trends across South Australia’s cities this December.
Temperatures trend during December in South Australia
See the weather trend as well as the moving average line
December weather in South Australia day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Dec. |  Patchy rain possible | 22° /12° | 0.1 mm | 8 | |
| 2 Dec. |  Sunny | 24° /12° | 0.1 mm | 8 | |
| 3 Dec. |  Overcast | 25° /12° | 0.1 mm | 8 | |
| 4 Dec. | Sunny | 28° /13° | 0 mm | 10 | |
| 5 Dec. |  Partly cloudy | 26° /14° | 0.1 mm | 9 | |
| 6 Dec. | Patchy rain possible | 25° /14° | 0.2 mm | 8 | |
| 7 Dec. | Sunny | 22° /12° | 0 mm | 8 | |
| 8 Dec. | Sunny | 23° /12° | 0 mm | 8 | |
| 9 Dec. | Partly cloudy | 22° /11° | 4.5 mm | 8 | |
| 10 Dec. | Partly cloudy | 25° /12° | 0.5 mm | 8 | |
| 11 Dec. | Sunny | 25° /12° | 0.3 mm | 9 | |
| 12 Dec. | Patchy rain possible | 27° /15° | 0.8 mm | 9 | |
| 13 Dec. | Sunny | 23° /14° | 0.5 mm | 8 | |
| 14 Dec. | Partly cloudy | 24° /14° | 0.1 mm | 8 | |
| 15 Dec. | Sunny | 24° /13° | 0.1 mm | 9 | |
| 16 Dec. | Sunny | 25° /12° | 0.9 mm | 9 | |
| 17 Dec. | Sunny | 30° /18° | 0 mm | 3.8 | |
| 18 Dec. | Sunny | 34° /22° | 0 mm | 3.8 | |
| 19 Dec. | Sunny | 28° /16° | 0 mm | 3.3 | |
| 20 Dec. | Sunny | 23° /13° | 0 mm | 3.7 | |
| 21 Dec. | Patchy rain possible | 20° /14° | 0.1 mm | 3.5 | |
| 22 Dec. | Sunny | 20° /12° | 0 mm | 8 | |
| 23 Dec. | Patchy rain possible | 21° /13° | 0.2 mm | 7 | |
| 24 Dec. | Sunny | 22° /11° | 0 mm | 8 | |
| 25 Dec. | Sunny | 23° /13° | 0 mm | 8 | |
| 26 Dec. | Sunny | 27° /12° | 0 mm | 8 | |
| 27 Dec. | Sunny | 30° /17° | 0 mm | 9 | |
| 28 Dec. | Partly cloudy | 34° /22° | 0 mm | 10 | |
| 29 Dec. | Sunny | 31° /22° | 0 mm | 10 | |
| 30 Dec. | Patchy rain possible | 33° /21° | 3.7 mm | 8 | |
| 31 Dec. | Sunny | 29° /15° | 0 mm | 9 | |
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Important Notice
Our weather forecast for South 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 South Australia forecast closer to your planned date for the most up-to-date weather information.
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South Australia in December - FAQ
What are the expected maximum and minimum temperatures in South Australia during December?
Enjoy moderate daytime temperatures of up to 24° and cooler nights around 14°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in South Australia during December?
Expect minimal rainfall in South Australia during December, with a total of 12.3 mm over approximately 4 days. This minimal precipitation is unlikely to significantly impact plans.
What are the typical wind conditions in South Australia during December?
The average wind speed in South Australia during December is 21 km/h, suggesting breezy to windy conditions, depending on your activities.
December rainfall patterns in South Australia
Explore the daily rainfall trends and prepare for South Australias December weather 💧
Typically, South Australia has 4 rainy days in December with a total of 12.3 mm of rainfall.
UV exposure in South Australia during December
Stay informed about UV levels for safe outdoor activities throughout the month of December ☀️
Counties in South Australia
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Top locations in South Australia
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AdelaideAdelaide HillsGawlerHappy ValleyMount BarkerMount GambierPort LincolnPort PirieProspectVictor Harbor
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