World Resorts Australia Sydney Weather

Sydney weather in December

Weather in Sydney: December

Average day temperature: 25.3°C
Average night temperature: 19.0°C
Sea water temperature: 21.1°C
Number of sunny days: 16 days
Day length: 14.2 - 14.4 hours
Number of rainy days: 4 days
Precipitation totals: 57.7 mm.

Air temperature in December, °C

Show year:
2018
2017
2016

The highest day temperature during December of 2018 was 31°C. At the same time the lowest night temperature was 17°C. Daily and nightly averages during December were 25.4°C and 20.6°C.

Sea water temperature in Sydney in December, °C

Show year:
2018
2017
2016

The average sea water temperature in December of 2018 was 21.2°C. The highest and lowest sea temperatures during the month were class="nb">22.1°C and 19.7°C.

Sunny, partly cloudy and cloudy days

Mostly all days in December are sunny but cloudy days are also possible.

Precipitation total in December, mm

Precipitation total value in Sydney in December is 57.7 mm. It makes december one of the most rainy months of the year.

Wind speed in December, m/s

The average wind speed value in December is 4.8 m./s. The wind's strength is relatively same during the whole year.

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in December is: 9.4.

Best time for vacation in Sydney

Sunniest months:
July 21 days
August 21 days
May 21 days
Warmest months:
January 26.8 °C
February 26.2 °C
March 25.4 °C
Warmest sea temp:
February 23.3 °C
March 23.2 °C
January 22.7 °C
Coldest months:
July 16.8 °C
June 16.9 °C
August 17.3 °C
Rainiest months:
June 5 days
November 4 days
December 4 days
Windiest months:
December 4.8 m/s
November 4.8 m/s
January 4.7 m/s

Sydney on a weather map

Sydney
+17°C
S 6 m/s
Feels like: +17°C
Precip.: 0%
Places in Australia:
Name
С°
+10°C
+18°C
+17°C
+23°C
+13°C
+20°C
+18°C
+12°C
+17°C
+12°C
+19°C
24 Hours Forecast
Sydney
Local time: 02:12
September 21, saturday
0300
17°C
S
6 m/s
0600
16°C
S
5 m/s
0900
19°C
S
5 m/s
1200
22°C
SW
7 m/s
1500
22°C
SW
7 m/s
1800
19°C
SW
6 m/s
2100
15°C
S
6 m/s
September 22, sunday
0000
16°C
NE
4 m/s