Sea Temperature

Perth Sea Temperature

(Today) Aug 2020

18.9°C / 66.1°F

Current weather

15°C / 59°F
(broken clouds)

Partly cloudy

10 mph



The measurements for the water temperature in Perth, Western Australia are provided by the daily satellite readings provided by the NOAA. The temperatures given are the sea surface temperature (SST) which is most relevant to recreational users.

Monthly average max / min water temperatures

The graph below shows the range of monthly Perth water temperature derived from many years of historical sea surface temperature data.

Maximum and minimum monthly sea temperatures in Perth
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 20 20.2 21.5 20.9 20.7 19.7 18.8 18.6 18 17.4 18.1 18.8
Max °C 23.8 25.5 25.3 24.7 23.8 22.9 21.1 20.2 20.1 20.5 21.2 23
Min °F 69.5 70.4 72.2 71.1 70.5 68.7 66.7 66.1 65.2 64.5 65.8 67.5
Max °F 73.3 75.7 76 74.9 73.6 71.9 69 67.7 67.3 67.6 68.9 71.7

7 day tide forecast for Perth

  • High 3:37am
  • Low 5:43pm
  • High 4:33am
  • Low 4:28pm
  • High 5:29am
  • Low 4:04pm
  • High 6:24am
  • Low 4:10pm
  • High 7:15am
  • Low 4:30pm
  • High 8:05am
  • Low 4:56pm
  • High 8:53am
  • Low 5:26pm
7 day tide times for Perth

*These tide times are estimates based on the nearest port (Fremantle, Australia) and may differ by up to half and hour depending on distance. Please note, the tide times given are not suitable for navigational purposes.

Average August sea temperatures

  • Max: 20.2°C / 68.4°F
  • Avg: 19.4°C / 66.9°F
  • Min: 18.6°C / 65.5°F
Perth average sea temperature chart

These average ocean temperatures for Perth are calculated from several years of archived data.

Map showing location of Perth (-31.952240, 115.861400)

Locations nearby


Whilst sea temperatures for Perth are as accurate as current data allows, there may be slight local and regional variations depending on conditions. Time of day and wind direction may have a temporary local effect as can water flows from neraby rivers.

Alternate names for Perth
Gorad Pert, PER, Peairt, Pert, Perta, Pertas, Perth, Perth City, Perthia, Perto, Perþ, Pirth, Purt, Pērta, byrth, part, partha, pasu, peoseu, pert, pheirth, po si, prt, prt', Περθ, Горад Перт, Перт, Пертһ, Пърт, Պերթ, פרת', بيرث, پرت, پرتہ, पर्थ, பேர்த், ಪರ್ತ್, പെർത്ത്, เพิร์ท, ပါ့သ်မြို့, პერთი, パース, 珀斯, 퍼스

Perth average sea temperature chart