20.12
sat
sat
Day
37°F
NE 22 mph
Precip.
0%
0%
Night
27°F
E 14 mph
Precip.
0%
0%
21.12
sun
sun
Day
36°F
N 18 mph
Precip.
0%
0%
Night
41°F
NE 15 mph
Precip.
100%
100%
22.12
mon
mon
Day
30°F
SE 16 mph
Precip.
0%
0%
Night
25°F
SE 17 mph
Precip.
84%
84%
23.12
tue
tue
Day
27°F
SE 14 mph
Precip.
65%
65%
Night
25°F
N 7 mph
Precip.
100%
100%
24.12
wed
wed
Day
34°F
W 11 mph
Precip.
64%
64%
Night
28°F
S 24 mph
Precip.
100%
100%
25.12
thu
thu
Day
27°F
E 11 mph
Precip.
0%
0%
Night
27°F
SE 9 mph
Precip.
0%
0%
26.12
fri
fri
Day
28°F
NW 2 mph
Precip.
0%
0%
Night
34°F
W 19 mph
Precip.
100%
100%
Sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 40.4°F. The highest and lowest sea temperatures during the month were 43.9°F and 37.9°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 34.9°F. The highest and lowest sea temperatures during the month were 36.5°F and 32.2°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 Canada:
Name
°F
24 Hours Forecast
Sydney
Local time: 06:52
December 20, saturday
0900
43°F
NE
21 mph
21 mph
1200
37°F
NE
22 mph
22 mph
1500
30°F
E
24 mph
24 mph
1800
28°F
E
18 mph
18 mph
2100
27°F
E
17 mph
17 mph
December 21, sunday
0000
27°F
E
14 mph
14 mph
0300
27°F
E
9 mph
9 mph
0600
28°F
NE
8 mph
8 mph
