Current Sea Water Temperature:
+65.8°F
| Maximum Sea Water Temperature in September: | 70.4°F |
| Minimum Sea Water Temperature in September: | 61.0°F |
| Average water temperature in September: | 65.4°F |
| detailed information | |
Sea Water Temperature for the Last 10 Days:
| September 20 | 65.8°F | September 15 | 65.2°F |
| September 19 | 64.2°F | September 14 | 63.6°F |
| September 18 | 64.4°F | September 13 | 63.8°F |
| September 17 | 65.2°F | September 12 | 64.2°F |
| September 16 | 65.0°F | September 11 | 64.8°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 2026 for Sydney was 76.7°F. The maximum and minimum values were 75.0°F and 78.6°F respectively.
Sea Water Temperature in March
The average sea surface temperature in March 2026 for Sydney was 76.1°F. The maximum and minimum values were 74.0°F and 78.2°F respectively.
Sea Water Temperature in January
The average sea surface temperature in January 2026 for Sydney was 75.5°F. The maximum and minimum values were 73.4°F and 78.6°F respectively.
Australia Resorts:
NAME
F°
| Adelaide |  |
+58 |
| Brisbane |  |
+68 |
| Cairns |  |
+62 |
| Canberra | |
+56 |
| Darwin | |
+82 |
| Fraser | |
+70 |
| Gold Coast | |
+58 |
| Melbourne | |
+66 |
| Perth | |
+62 |
| Sydney | |
+70 |
| Tasmania |  |
+52 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Sydney
Local time: 22:19
21 sep, monday
| 0000 |  |
70°F | SE 11 mph |
| 0300 | |
68°F | SE 11 mph |
| 0600 |  |
66°F | SE 11 mph |
| 0900 | |
76°F | E 14 mph |
| 1200 | |
66°F | N 29 mph |
| 1500 |  |
64°F | N 26 mph |
| 1800 | |
60°F | N 24 mph |
| 2100 |  |
60°F | N 21 mph |