World Resorts Australia Sydney Weather

Sydney weather in December

Weather in Sydney: December

Average day temperature: 75.7°F
Average night temperature: 66.2°F
Sea water temperature: 70.3°F
Number of sunny days: 14 days
Day length: 14.2 - 14.4 hours
Number of rainy days: 3 days
Precipitation totals: 1.9 in.

Air temperature in December, °F

Show year:
2023
2022
2021

The highest day temperature during December of 2023 was 94°F. At the same time the lowest night temperature was 63°F. Day and night temperature averages during December were 75.1°F and 68.0°F.

Sea water temperature in Sydney in December, °F

Show year:
2023
2022
2021

The average sea water temperature in December of 2023 was 72.3°F. The highest and lowest sea temperatures during the month were 74.7°F and 69.6°F.

Sunny, partly cloudy and cloudy days

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

Precipitation total in December, in.

Precipitation total value in Sydney in December is 1.8 in. Other months of the year show relatively similar values.

Wind speed in December, mph

The average wind speed value in December is 11.2 mph It makes December most windy month of the 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: 8.0.

Best time for vacation in Sydney

Sunniest months:
July 20 days
August 20 days
May 19 days
Warmest months:
January 78.6 °F
February 77.8 °F
March 76.5 °F
Warmest sea temp:
February 74.1 °F
March 73.7 °F
January 73.2 °F
Coldest months:
July 62.0 °F
June 62.2 °F
August 63.1 °F
Rainiest months:
March 4 days
June 4 days
February 3 days
Windiest months:
December 11.0 mph
January 10.9 mph
November 10.8 mph

Sydney on a weather map

Sydney
+70°F
W 2 mph
Feels like: +70°F
Precip.: 0%
Places in Australia:
Name
°F
+81°F
+72°F
+73°F
+79°F
+63°F
+75°F
+68°F
+66°F
+70°F
+59°F
+75°F
24 Hours Forecast
Sydney
Local time: 08:15
March 05, tuesday
0900
70°F
W
2 mph
1200
73°F
SW
10 mph
1500
73°F
SW
14 mph
1800
70°F
SW
15 mph
2100
70°F
S
12 mph
March 06, wednesday
0000
68°F
S
9 mph
0300
68°F
S
7 mph
0600
66°F
SE
6 mph
Units of measurement: °C / °F