Comparing Sea Temperatures around Australia's Cities:
Adelaide, Brisbane, Melbourne, Perth, Sydney
The tables below show how comfortable the seas around Australia are for swimming. We have also shown tables for Bournemouth, UK; Los Angeles, USA; and Daytona Beach, USA.
If you're planning to have a swimming pool in your garden in Australia, unheated pools reach higher temperatures in summer than the sea does.
Key to Swimming Comfort - On Warm, Sunny Days
Most people are comfortable swimming.
Chillier. Some people are still fairly comfortable swimming.
Everyone feels the sea is cold.
Very cold.
Brisbane (Gold Coast)
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| Av. Temperature (OC) | 26 | 26 | 26 | 25 | 24 | 22 | 22 | 21 | 21 | 22 | 23 | 25 |
Sydney
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| Av. Temperature (OC) | 23 | 24 | 23 | 22 | 21 | 20 | 18 | 18 | 18 | 19 | 20 | 21 |
Perth
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| Av. Temperature (OC) | 21 | 22 | 22 | 22 | 22 | 21 | 20 | 19 | 19 | 19 | 20 | 20 |
Adelaide
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| Av. Temperature (OC) | 18 | 19 | 19 | 18 | 17 | 16 | 16 | 15 | 14 | 14 | 15 | 17 |
Melbourne
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| Av. Temperature (OC) | 17 | 18 | 18 | 17 | 15 | 14 | 14 | 14 | 13 | 13 | 14 | 16 |
Bournemouth (United Kingdom)
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| Av. Temperature (OC) | 7 | 6 | 7 | 8 | 11 | 14 | 17 | 18 | 16 | 14 | 11 | 8 |
Daytona Beach (Florida - USA)
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| Av. Temperature (OC) | 16 | 15 | 18 | 22 | 25 | 26 | 27 | 27 | 28 | 25 | 22 | 18 |
Los Angeles (California - USA)
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| Av. Temperature (oC) | 14 | 14 | 16 | 16 | 16 | 17 | 19 | 20 | 19 | 19 | 18 | 16 |
Brisbane (Gold Coast) is best for sea-temperature comfort, followed by Sydney and Perth.
The very coldest winter sea temperatures for Sydney/Perth are similar to the warmest summer waters available in the UK.
Adelaide's sea temperatures are similar to Los Angeles' while Brisbane's compares favourably with Daytona Beach, Florida.
We can also compare Australia's sea temperatures with those in the Mediterranean. For example, sea temperatures around Malta average 23 oC in summer and 13 oC in winter.