Australia: where to swim in August?
Australia, in August: the sea is at 19.8 °C on average along the coast, from 13.1 °C to 25.7 °C depending on the spot. Where the water is warmest (25.7 °C), it is warm. Ideal for long swims and for being in the water all day.
Sea temperature, month by month
| Month | Average temperature | Depending on the spot | Where it is warmest |
|---|---|---|---|
| January | 24.5 °C | 17.8 °C – 30.4 °C | very warm |
| February | 24.8 °C | 18.4 °C – 30.2 °C | very warm |
| March | 24.8 °C | 18.1 °C – 30.3 °C | very warm |
| April | 24.1 °C | 17.2 °C – 29.9 °C | very warm |
| May | 22.6 °C | 15.8 °C – 28.4 °C | very warm |
| June | 21.2 °C | 14.6 °C – 26.8 °C | warm |
| July | 20.2 °C | 13.7 °C – 25.8 °C | warm |
| August | 19.8 °C | 13.1 °C – 25.7 °C | warm |
| September | 20.3 °C | 13.1 °C – 26.6 °C | warm |
| October | 21.4 °C | 13.8 °C – 28.5 °C | very warm |
| November | 22.5 °C | 14.8 °C – 29.9 °C | very warm |
| December | 23.7 °C | 16.1 °C – 30.7 °C | very warm |
Compared with July, the water cools down by 0.4 °C in August. The warmest month: February (24.8 °C). The coldest: August (19.8 °C).
Where the water is warmest in August
- Queensland 23.3 °C · warm
- Western Australia 20.8 °C · warm
- New South Wales 19.3 °C · pleasant
- South Australia 14.7 °C · cool
- Victoria 13.7 °C · cool
- Tasmania 12.9 °C · cold
And right now?
For the temperature measured right now, station by station and to the hour: Australia: water temperature
Frequently asked questions
What is the sea temperature in August?
Australia, in August: 19.8 °C on average along the coast, from 13.1 °C in the coolest waters to 25.7 °C in the warmest (average of the years 2011 to 2025).
Can you swim in August?
Where the water is warmest (25.7 °C), it is warm. Ideal for long swims and for being in the water all day.
What is the best month for swimming?
The water is warmest in February (24.8 °C on average) and coldest in August (19.8 °C). Where the water is warmest, it goes above 20 °C in these months: January, February, March, April, May, June, July, August, September, October, November, December.
Where is the water warmest in August?
The warmest in August: Queensland (23.3 °C), Western Australia (20.8 °C), New South Wales (19.3 °C). The coolest: Tasmania (12.9 °C).
Where do these temperatures come from?
These are averages of the sea surface temperature from 2011 to 2025, computed from NOAA satellite images (OISST, one value about every 50 km), in a 100 km strip along the coasts of the main country: distant territories (overseas, remote islands) are not counted. It is an estimate, not a measurement taken at the beach: lakes and rivers are not included.