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%
27.12
sat
sat
Day

32°F
SE 25 mph
Precip.
100%
100%
Night

27°F
SE 19 mph
Precip.
0%
0%
28.12
sun
sun
Day

28°F
SE 20 mph
Precip.
0%
0%
Night

28°F
SE 21 mph
Precip.
68%
68%
29.12
mon
mon
Day

28°F
SE 19 mph
Precip.
84%
84%
Night

27°F
SE 16 mph
Precip.
0%
0%
30.12
tue
tue
Day

28°F
SE 13 mph
Precip.
0%
0%
Night

23°F
SE 10 mph
Precip.
0%
0%
31.12
wed
wed
Day

25°F
S 13 mph
Precip.
0%
0%
Night

19°F
SE 2 mph
Precip.
0%
0%
01.01
thu
thu
Day

25°F
NE 4 mph
Precip.
0%
0%
Night

28°F
S 14 mph
Precip.
100%
100%
02.01
fri
fri
Day

28°F
S 16 mph
Precip.
0%
0%
Night

27°F
E 11 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 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: 20:17
December 20, saturday
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
0900

30°F
N
12 mph
12 mph
1200

36°F
N
18 mph
18 mph
1500

37°F
N
19 mph
19 mph
1800

39°F
NE
17 mph
17 mph



























