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Weather in Sydney for December 2025

Your guide to Sydney weather in December - trends and predictions

    Official Weather Alert ⚠️

  • Snow Squall Warning - See hour by hour.

    • Snow Forecast ❄️

  • The climate of Sydney in December is quite snowy, averaging 12 snowy days.
    According to Sydney snow forecast for December 2025, 8 snowy days are expected in the next 2 weeks. The closest date with snow is Sunday, 14 December.

    • Temperatures

  • Until now, December 2025 in Sydney has been nearly identical to the historical average, with a temperature of 3.5 °C (showing only a slight deviation of -0.5 °C).

  • Expect cooler weather in the next days in Sydney with the forecast suggesting a temperature of 0.2 °C, lower than the historical average.

  • In general, the average temperature in Sydney at the beginning of December is 3.9 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of -0.1 °C by the end of December.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
8
Dry days
Average rainy days
11
Rainy days
Average snowy days
12
Snow days
Average temperatures
3°/-1°
Temperatures
Average wind speed
25 km/h
Avg max wind
Average humidity
80 %
Avg humidity

Sydney Weather December

Move between months or click on a day
November
January
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Overcast
7°
2
Overcast
4°
3
Patchy rain possible
5°
4
Heavy snow
3°
5
Moderate or heavy snow showers
5°
6
Light snow showers
2°
7
Cloudy
1°
8
Patchy light snow
1°
9
Overcast
2°
10
Overcast
4°
11
Patchy rain possible
10°
12
Light snow showers
8°
13
Weather Alert Partly cloudy
1°
14
Moderate or heavy snow showers
4°
15
Overcast
1°
16
Light freezing rain
-4°
17
Patchy moderate snow
4°
18
Blowing snow
3°
19
Heavy snow
3°
20
Blowing snow
-2°
21
Light freezing rain
0°
22
Partly cloudy
-2°
23
Heavy snow
0°
24
Light freezing rain
4°
25
Blizzard
-7°
26
Partly cloudy
-2°
27
Patchy rain possible
2°
28
Moderate or heavy snow showers
0°
29
Heavy snow
1°
30
Moderate snow
2°
31
Light snow showers
3°

Temperatures trend during December in Sydney

See the weather trend as well as the moving average line

December weather in Sydney day by day

Click on a date for more information
November January
Date Weather Temperatures Rain Snow More
1 Dec. Overcast
Overcast
 7° /1° 18.2 mm 1 cm
2 Dec. Overcast
Overcast
 4° /0° 1 mm 0 cm
3 Dec. Patchy rain possible
Patchy rain possible
 5° /0° 50.1 mm 0 cm
4 Dec. Heavy snow
Heavy snow
 3° /0° 12.8 mm 6.5 cm
5 Dec. Moderate or heavy snow showers
Moderate or heavy snow showers
 5° /-3° 17.8 mm 1.1 cm
6 Dec. Light snow showers
Light snow showers
 2° /-4° 8.9 mm 0 cm
7 Dec. Cloudy
Cloudy
 1° /-3° 0.1 mm 0.1 cm
8 Dec. Patchy light snow
Patchy light snow
 1° /-4° 19.1 mm 8 cm
9 Dec. Overcast
Overcast
 2° /-4° 3.7 mm 0 cm
10 Dec. Overcast
Overcast
 4° /-4° 2.3 mm 0 cm
11 Dec. Patchy rain possible
Patchy rain possible
 10° /4° 15.2 mm 0 cm
12 Dec. Light snow showers
Light snow showers
 8° /1° 20.9 mm 0 cm
13 Dec. Partly cloudy
Partly cloudy
 1° /-4° 0 mm 0 cm
14 Dec. Moderate or heavy snow showers
Moderate or heavy snow showers
 4° /-2° 17.3 mm 6.6 cm
15 Dec. Overcast
Overcast
 1° /-4° 0 mm 0 cm
16 Dec. Light freezing rain
Light freezing rain
 -4° /-5° 0.3 mm 0.1 cm
17 Dec. Patchy moderate snow
Patchy moderate snow
 4° /-5° 0.8 mm 0 cm
18 Dec. Blowing snow
Blowing snow
 3° /-3° 0.6 mm 0 cm
19 Dec. Heavy snow
Heavy snow
 3° /-3° 2.6 mm 1.8 cm
20 Dec. Blowing snow
Blowing snow
 -2° /-4° 0.4 mm 0 cm
21 Dec. Light freezing rain
Light freezing rain
 0° /-5° 0.8 mm 0.2 cm
22 Dec. Partly cloudy
Partly cloudy
 -2° /-5° 0 mm 0 cm
23 Dec. Heavy snow
Heavy snow
 0° /-5° 10.8 mm 4.6 cm
24 Dec. Light freezing rain
Light freezing rain
 4° /-6° 0.2 mm 0 cm
25 Dec. Blizzard
Blizzard
 -7° /-9° 0.8 mm 0 cm
26 Dec. Partly cloudy
Partly cloudy
 -2° /-10° 0.1 mm 0.1 cm
27 Dec. Patchy rain possible
Patchy rain possible
 2° /0° 0.5 mm 0 cm
28 Dec. Moderate or heavy snow showers
Moderate or heavy snow showers
 0° /-3° 5.8 mm 4.1 cm
29 Dec. Heavy snow
Heavy snow
 1° /-2° 3.7 mm 1.5 cm
30 Dec. Moderate snow
Moderate snow
 2° /-1° 4.2 mm 3.6 cm
31 Dec. Light snow showers
Light snow showers
 3° /-1° 15.5 mm 1.1 cm
Next
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.
Change Month
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Sydney in December - FAQ

What are the expected maximum and minimum temperatures in Sydney during December?
Brace for cold days with temperatures not exceeding 3° 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 290 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 42.675 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 25 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 ❄️
On average, Sydney sees 12 snowy days during December, with approximately 42.7 cm of total snowfall.

December rainfall patterns in Sydney

Explore the daily rainfall trends and prepare for Sydneys December weather 💧
Typically, Sydney has 11 rainy days in December with a total of 290 mm of rainfall.

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Get accurate weather forecasts for Sydney, located at latitude 46.135 and longitude -60.183. Stay updated with localized weather information tailored for Sydney.

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