Sydney
December
Weather in Sydney for December 2025
Your guide to Sydney weather in December - trends and predictions
In general, the average temperature in Sydney at the beginning of December is 23.4 °C. As the month progressed, temperatures tended to slightly increase, reaching an average of 23.9 °C by the end of December.
Sydney experiences heavy rainfall in December, with over 20 rainy days and an average total precipitation 79.2 mm.
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Temperatures
Rain 🌧️
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7
Dry days
24
Rainy days
0
Snow days
23°/18°
Temperatures
24 km/h
Avg max wind
73 %
Avg humidity
Sydney in December average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  23° | 2  24° | 3 24° | 4 21° | 5  23° | 6 23° | 7  26° |
| 8 23° | 9 23° | 10 23° | 11 22° | 12 24° | 13 24° | 14 25° |
| 15 24° | 16 24° | 17 24° | 18 25° | 19 24° | 20 22° | 21 24° |
| 22 23° | 23 23° | 24 23° | 25 24° | 26 24° | 27  26° | 28 24° |
| 29 23° | 30 23° | 31 23° |
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Temperatures trend during December in Sydney
See the weather trend as well as the moving average line
December weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Dec. | Patchy rain possible | 23° /17° | 3.7 mm | 8 | |
| 2 Dec. | Partly cloudy | 24° /17° | 2.7 mm | 8 | |
| 3 Dec. | Patchy rain possible | 24° /17° | 1.6 mm | 8 | |
| 4 Dec. | Patchy rain possible | 21° /17° | 0.4 mm | 7 | |
| 5 Dec. | Sunny | 23° /17° | 0.1 mm | 8 | |
| 6 Dec. | Patchy rain possible | 23° /18° | 0.8 mm | 8 | |
| 7 Dec. | Moderate rain at times | 26° /18° | 1.9 mm | 8 | |
| 8 Dec. | Patchy rain possible | 23° /17° | 0.3 mm | 8 | |
| 9 Dec. | Patchy rain possible | 23° /17° | 2.3 mm | 8 | |
| 10 Dec. | Patchy rain possible | 23° /17° | 3.3 mm | 8 | |
| 11 Dec. | Patchy rain possible | 22° /16° | 0.4 mm | 7 | |
| 12 Dec. | Patchy rain possible | 24° /17° | 0.5 mm | 8 | |
| 13 Dec. | Patchy rain possible | 24° /16° | 0.1 mm | 9 | |
| 14 Dec. | Sunny | 25° /18° | 1.2 mm | 8 | |
| 15 Dec. | Partly cloudy | 24° /17° | 2.1 mm | 8 | |
| 16 Dec. | Patchy rain possible | 24° /18° | 4.3 mm | 8 | |
| 17 Dec. | Patchy rain possible | 24° /18° | 3.7 mm | 8 | |
| 18 Dec. | Patchy rain possible | 25° /18° | 2.9 mm | 8 | |
| 19 Dec. | Partly cloudy | 24° /19° | 1.1 mm | 9 | |
| 20 Dec. | Patchy rain possible | 22° /17° | 5.2 mm | 7 | |
| 21 Dec. | Partly cloudy | 24° /16° | 5.6 mm | 8 | |
| 22 Dec. | Moderate rain at times | 23° /17° | 2.7 mm | 7 | |
| 23 Dec. | Sunny | 23° /17° | 1.5 mm | 7 | |
| 24 Dec. | Patchy rain possible | 23° /17° | 2.3 mm | 7 | |
| 25 Dec. | Patchy rain possible | 24° /18° | 3 mm | 7 | |
| 26 Dec. | Sunny | 24° /18° | 4.2 mm | 8 | |
| 27 Dec. | Cloudy | 26° /18° | 3 mm | 8 | |
| 28 Dec. | Partly cloudy | 24° /17° | 1.5 mm | 8 | |
| 29 Dec. | Patchy rain possible | 23° /18° | 1.5 mm | 7 | |
| 30 Dec. | Patchy rain possible | 23° /18° | 3.4 mm | 7 | |
| 31 Dec. | Patchy rain possible | 23° /18° | 1 mm | 7 | |
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Important Notice
Our weather forecast for Sydney 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 Sydney forecast closer to your planned date for the most up-to-date weather information.
Sydney in December - FAQ
What are the expected maximum and minimum temperatures in Sydney during December?
During December, expect a variety of temperatures with highs around 23° and lows near 18°, suitable for diverse activities and preferences.
How much rainfall should be expected in Sydney during December?
Moderate rainfall is anticipated in Sydney during December, with a total of 79.2 mm spread over approximately 24 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Sydney during December?
The average wind speed in Sydney during December is 24 km/h, suggesting breezy to windy conditions, depending on your activities.
December rainfall patterns in Sydney
Explore the daily rainfall trends and prepare for Sydneys December weather 💧
UV exposure in Sydney during December
Stay informed about UV levels for safe outdoor activities throughout the month of December ☀️
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