29.12
mon
mon
Day
30°F
S 7 mph
Precip.
0%
0%
Night
30°F
NW 5 mph
Precip.
0%
0%
30.12
tue
tue
Day
39°F
NE 19 mph
Precip.
100%
100%
Night
34°F
NE 16 mph
Precip.
0%
0%
31.12
wed
wed
Day
30°F
NE 17 mph
Precip.
0%
0%
Night
28°F
N 5 mph
Precip.
0%
0%
01.01
thu
thu
Day
37°F
N 8 mph
Precip.
100%
100%
Night
25°F
E 11 mph
Precip.
0%
0%
02.01
fri
fri
Day
21°F
E 7 mph
Precip.
0%
0%
Night
28°F
NW 13 mph
Precip.
0%
0%
03.01
sat
sat
Day
30°F
E 15 mph
Precip.
100%
100%
Night
19°F
NW 4 mph
Precip.
0%
0%
04.01
sun
sun
Day
27°F
E 16 mph
Precip.
0%
0%
Night
16°F
E 9 mph
Precip.
70%
70%
Sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 39.6°F. The highest and lowest sea temperatures during the month were 43.9°F and 36.9°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: 02:42
December 29, monday
0300
27°F
SE
11 mph
11 mph
0600
27°F
SE
7 mph
7 mph
0900
27°F
SE
6 mph
6 mph
1200
30°F
S
7 mph
7 mph
1500
30°F
S
3 mph
3 mph
1800
30°F
S
1 mph
1 mph
2100
30°F
W
1 mph
1 mph
December 30, tuesday
0000
30°F
NW
5 mph
5 mph
