Current Sea Water Temperature:
+74.2°F
| Maximum Sea Water Temperature in December: | 78.2°F |
| Minimum Sea Water Temperature in December: | 68.4°F |
| Average water temperature in December: | 72.7°F |
| detailed information | |
Sea Water Temperature for the Last 10 Days:
| December 17 | 74.2°F | December 12 | 75.0°F |
| December 16 | 73.4°F | December 11 | 75.0°F |
| December 15 | 73.8°F | December 10 | 75.2°F |
| December 14 | 74.2°F | December 09 | 73.8°F |
| December 13 | 73.0°F | December 08 | 74.0°F |
When is the Warmest Sea for Sydney?
According to our data for the last three years for Sydney the highest average sea water temperature was in February, March and January.
Average Water Temperature by Month, °F
Sea Water Temperature in February
The average sea surface temperature in February 2025 for Sydney was 77.3°F. The maximum and minimum values were 74.2°F and 80.4°F respectively.
Sea Water Temperature in March
The average sea surface temperature in March 2025 for Sydney was 76.7°F. The maximum and minimum values were 75.2°F and 78.8°F respectively.
Sea Water Temperature in January
The average sea surface temperature in January 2025 for Sydney was 76.7°F. The maximum and minimum values were 73.8°F and 77.8°F respectively.
Australia Resorts:
NAME
F°
| Adelaide |  |
+92 |
| Brisbane |  |
+78 |
| Cairns |  |
+84 |
| Canberra | |
+88 |
| Darwin | |
+86 |
| Fraser |  |
+80 |
| Gold Coast | |
+78 |
| Melbourne | |
+88 |
| Perth | |
+64 |
| Sydney | |
+80 |
| Tasmania | |
+66 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Sydney
Local time: 10:05
18 dec, thursday
| 1200 |  |
86°F | SW 13 mph |
| 1500 | |
86°F | SW 17 mph |
| 1800 | |
80°F | SW 16 mph |
| 2100 |  |
76°F | S 11 mph |
19 dec, friday
| 0000 | |
76°F | S 2 mph |
| 0300 | |
74°F | SE 2 mph |
| 0600 | |
76°F | NE 7 mph |
| 0900 | |
86°F | N 2 mph |