In October warmest sea in Australia is usually observed in the following locations: Darwin, Cairns, Fraser.
Table below shows the average sea water temperature for marine resorts of Australia in October for the last three years.
| Place name | October 2025 | October 2024 | October 2023 |
|---|---|---|---|
| Darwin | 87.1°F | 87.4°F | 86.2°F |
| Cairns | 80.7°F | 80.2°F | 78.5°F |
| Fraser | 75.6°F | 74.4°F | 73.6°F |
| Brisbane | 74.9°F | 73.4°F | 72.7°F |
| Gold Coast | 70.6°F | 71.9°F | 70.9°F |
| Sydney | 67.2°F | 66.1°F | 66.1°F |
| Perth | 66.4°F | 66.8°F | 67.4°F |
| Adelaide | 61.8°F | 62.1°F | 62.4°F |
| Melbourne | 57.9°F | 59.3°F | 59.4°F |
| Tasmania | 53.2°F | 54.8°F | 55.5°F |
Charts below show average sea water temperature for Australia resorts with the warmest sea in October.
You can also check other months of the year to see sea temperature of Australia resorts at that time.
Places in Australia:
Name
°F
