28.12
sun
sun
Day
68°F
N 16 mph
Precip.
100%
100%
Night
63°F
NW 6 mph
Precip.
0%
0%
29.12
mon
mon
Day
70°F
NW 11 mph
Precip.
0%
0%
Night
63°F
SE 3 mph
Precip.
0%
0%
30.12
tue
tue
Day
75°F
SW 14 mph
Precip.
0%
0%
Night
68°F
NW 4 mph
Precip.
0%
0%
31.12
wed
wed
Day
70°F
NW 14 mph
Precip.
100%
100%
Night
64°F
N 16 mph
Precip.
24%
24%
01.01
thu
thu
Day
66°F
N 19 mph
Precip.
73%
73%
Night
64°F
NW 10 mph
Precip.
29%
29%
02.01
fri
fri
Day
70°F
NW 11 mph
Precip.
0%
0%
Night
64°F
E 3 mph
Precip.
59%
59%
03.01
sat
sat
Day
73°F
SW 13 mph
Precip.
26%
26%
Night
68°F
SW 10 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: 12:33
December 28, sunday
1500
70°F
NW
15 mph
15 mph
1800
68°F
NW
11 mph
11 mph
2100
64°F
NW
8 mph
8 mph
December 29, monday
0000
63°F
NW
6 mph
6 mph
0300
63°F
N
5 mph
5 mph
0600
63°F
NE
4 mph
4 mph
0900
68°F
NW
7 mph
7 mph
1200
70°F
NW
11 mph
11 mph
