Measurements:
°C
°F
CURRENT WEATHER
20:11
Sydney
76°F
SW 9 mph
Feels like: 80°F
Precip: 0%
World Resorts Australia Sydney Weather

7 Day Weather Forecast

12.18
thu
DAY
84°F
SW 14 mph
precip
0%
NIGHT
76°F
S 6 mph
precip
0%
12.19
fri
DAY
96°F
SW 11 mph
precip
0%
NIGHT
78°F
E 11 mph
precip
100%
12.20
sat
DAY
86°F
S 14 mph
precip
0%
NIGHT
74°F
N 12 mph
precip
0%
12.21
sun
DAY
90°F
SW 9 mph
precip
0%
NIGHT
78°F
S 16 mph
precip
0%
12.22
mon
DAY
74°F
NW 15 mph
precip
83%
NIGHT
70°F
W 7 mph
precip
72%
12.23
tue
DAY
78°F
SW 15 mph
precip
28%
NIGHT
68°F
N 19 mph
precip
0%
12.24
wed
DAY
84°F
NW 7 mph
precip
0%
NIGHT
68°F
NW 14 mph
precip
66%

Sydney Sea Water Temperature in December, °F

Select Year: 2025 2024 2023

The average sea surface temperature in December 2025 for Sydney was 21.7°F. The maximum and minimum values were 20.6°F and 22.6°F respectively.

Sydney on the Weather Map

Best Time to Visit Sydney
The most sunny months:
July 19 days
May 18 days
August 18 days
The most warm months:
January 81.5 °F
February 80.7 °F
March 79.2 °F
Warmest sea temperature:
February 76.8 °F
March 76.3 °F
January 75.8 °F
The most cold months:
July 63.0 °F
June 63.3 °F
August 64.6 °F
The most rainy months:
June 4 days
March 4 days
November 3 days
The most windy months:
January 11 mph
December 11 mph
November 11 mph
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