31.12
wed
wed
Day
73°F
W 9 mph
Precip.
0%
0%
Night
66°F
N 14 mph
Precip.
100%
100%
01.01
thu
thu
Day
68°F
N 16 mph
Precip.
82%
82%
Night
64°F
NW 6 mph
Precip.
70%
70%
02.01
fri
fri
Day
70°F
W 11 mph
Precip.
0%
0%
Night
66°F
SW 7 mph
Precip.
70%
70%
03.01
sat
sat
Day
73°F
SW 14 mph
Precip.
100%
100%
Night
70°F
SW 11 mph
Precip.
21%
21%
04.01
sun
sun
Day
79°F
SW 12 mph
Precip.
0%
0%
Night
72°F
NW 9 mph
Precip.
0%
0%
05.01
mon
mon
Day
81°F
SW 6 mph
Precip.
100%
100%
Night
68°F
N 13 mph
Precip.
73%
73%
06.01
tue
tue
Day
73°F
NW 10 mph
Precip.
0%
0%
Night
68°F
NW 6 mph
Precip.
0%
0%
Sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 72.1°F. The highest and lowest sea temperatures during the month were 74.7°F and 69.1°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 74.0°F. The highest and lowest sea temperatures during the month were 75.0°F and 71.4°F.
Air temperature in Sydney, °F
Precipitation total in Sydney, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Sydney
Sydney on a weather map
Places in Australia:
Name
°F
24 Hours Forecast
Sydney
Local time: 07:37
December 31, wednesday
0900
70°F
NW
4 mph
4 mph
1200
73°F
W
9 mph
9 mph
1500
70°F
W
11 mph
11 mph
1800
70°F
NW
11 mph
11 mph
2100
66°F
N
11 mph
11 mph
January 01, thursday
0000
66°F
N
14 mph
14 mph
0300
64°F
N
14 mph
14 mph
0600
66°F
N
16 mph
16 mph
