Sydney
December
Weather in Sydney for December 2025
Your guide to Sydney weather in December - trends and predictions
The climate of Sydney in December is quite snowy, averaging 12 snowy days.
In general, the average temperature in Sydney at the beginning of December is 3.4 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 1.9 °C by the end of December.
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Snow Forecast ❄️
Temperatures
More
8
Dry days
11
Rainy days
12
Snow days
4°/-1°
Temperatures
27 km/h
Avg max wind
80 %
Avg humidity
Sydney in December average weather
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| Sun. | Mon. | Tue. | Wed. | Thu. | Fri. | Sat. |
|---|---|---|---|---|---|---|
| 1  5° | 2  5° | 3  3° | 4  2° | 5  5° | 6  4° | |
| 7 -0° | 8  1° | 9 4° | 10  4° | 11 11° | 12 11° | 13  5° |
| 14 -1° | 15 2° | 16 3° | 17 5° | 18 9° | 19  10° | 20 6° |
| 21 3° | 22  -0° | 23  -1° | 24 0° | 25 2° | 26 3° | 27 2° |
| 28 0° | 29 1° | 30  2° | 31 3° |
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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 | Snow | More |
|---|---|---|---|---|---|
| 1 Dec. | Overcast | 5° /1° | 3.6 mm | 1.5 cm | |
| 2 Dec. | Light drizzle | 5° /2° | 1.4 mm | 0 cm | |
| 3 Dec. | Patchy rain possible | 3° /0° | 1.4 mm | 0 cm | |
| 4 Dec. | Heavy snow | 2° /0° | 11.5 mm | 9.8 cm | |
| 5 Dec. | Moderate or heavy snow showers | 5° /-2° | 13.1 mm | 0.5 cm | |
| 6 Dec. | Light snow showers | 4° /-3° | 13.4 mm | 0 cm | |
| 7 Dec. | Moderate or heavy snow showers | 0° /-3° | 0.2 mm | 0.1 cm | |
| 8 Dec. | Patchy light snow | 1° /-3° | 8.5 mm | 6.1 cm | |
| 9 Dec. | Overcast | 4° /-2° | 5.5 mm | 0 cm | |
| 10 Dec. | Mist | 4° /-3° | 0.8 mm | 0 cm | |
| 11 Dec. | Patchy rain possible | 11° /4° | 4.2 mm | 0 cm | |
| 12 Dec. | Light snow showers | 11° /3° | 31.4 mm | 0 cm | |
| 13 Dec. | Light sleet showers | 5° /-1° | 0.3 mm | 0.1 cm | |
| 14 Dec. | Moderate or heavy snow showers | -1° /-4° | 1.8 mm | 1.5 cm | |
| 15 Dec. | Overcast | 2° /-3° | 0 mm | 0 cm | |
| 16 Dec. | Light snow showers | 3° /-2° | 0.1 mm | 0.1 cm | |
| 17 Dec. | Overcast | 5° /-2° | 9.9 mm | 0 cm | |
| 18 Dec. | Patchy rain possible | 9° /2° | 0.5 mm | 0 cm | |
| 19 Dec. | Moderate rain | 10° /5° | 47 mm | 0 cm | |
| 20 Dec. | Moderate rain | 6° /1° | 31.7 mm | 0 cm | |
| 21 Dec. | Light snow | 3° /0° | 63.5 mm | 12.5 cm | |
| 22 Dec. | Blizzard | 0° /-3° | 3.1 mm | 0 cm | |
| 23 Dec. | Partly cloudy | -1° /-6° | 0 mm | 0 cm | |
| 24 Dec. | Partly cloudy | 0° /-4° | 0 mm | 0 cm | |
| 25 Dec. | Overcast | 2° /-2° | 0 mm | 0 cm | |
| 26 Dec. | Overcast | 3° /-1° | 7 mm | 0 cm | |
| 27 Dec. | Patchy rain possible | 2° /0° | 0.5 mm | 0 cm | |
| 28 Dec. | Moderate or heavy snow showers | 0° /-3° | 5.8 mm | 4.1 cm | |
| 29 Dec. | Heavy snow | 1° /-2° | 3.7 mm | 1.5 cm | |
| 30 Dec. | Moderate snow | 2° /-1° | 4.2 mm | 3.6 cm | |
| 31 Dec. | Light snow showers | 3° /-1° | 15.5 mm | 1.1 cm | |
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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?
Brace for cold days with temperatures not exceeding 4° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in Sydney during December?
Significant rainfall exceeding 278.5 mm is expected in Sydney during December, occurring over more than 11 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Sydney in December 2025?
Sydney experiences an average snowfall of 42.315 cm during December, occurring over 12 days.
What are the typical wind conditions in Sydney during December?
The average wind speed in Sydney during December is 27 km/h, suggesting breezy to windy conditions, depending on your activities.
Sydney snow forecast December 2025
Track daily snowfall levels and discover Sydney’s snowy potential this December ❄️
December rainfall patterns in Sydney
Explore the daily rainfall trends and prepare for Sydneys December weather 💧
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