Salmon Bay Weather Forecast

    • 14
    • 18

    Partly cloudy

    • 13
    • 19

    Sunny

    • 14
    • 18

    Partly cloudy

    • 14
    • 18

    Possible shower

    • 11
    • 17

    Mostly sunny

    • 14
    • 19

    Showers

    • 14
    • 18

    Showers

Today 20 Aug Lower West

Partly cloudy. Medium chance of showers in the south, slight chance elsewhere. Light winds. Daytime maximum temperatures between 18 and 21.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Variable below 10 knots.
Seas
Below 0.5 metres.
1st Swell
West to southwesterly 2 to 3 metres.
Weather
Partly cloudy.
Weather Situation
A weak ridge lies across southern WA. A weak trough will deepen down the west coast from late Friday, pushing inland later on Saturday ahead of another weak front which is slated to reach the lower west coast during Sunday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Salmon Bay Temperature Statistics View More

August Temperature

Rottnest Island (1km)

  • Lowest 9 August, 2026

    7.4 °C

  • Average August

    15.3 °C

  • Highest 16 August, 2026

    23.2 °C

Climate (2021–2026)

Rottnest Island (1km)

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  • Average Low 2021–2026

    16.1 °C

  • Average 2021–2026

    18.9 °C

  • Average High 2021–2026

    22.8 °C
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