Third Rocks Weather Forecast

    • 20
    • 24

    Partly cloudy

    • 18
    • 22

    Showers

    • 18
    • 22

    Possible shower

    • 13
    • 22

    Partly cloudy

    • 15
    • 26

    Sunny

    • 18
    • 27

    Sunny

    • 18
    • 26

    Possible shower

Today 29 Mar Perth

Mostly clear. Light winds.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Southwesterly below 10 knots.
Seas
Below 0.5 metres.
1st Swell
Southwesterly around 1 metre.
Weather
Partly cloudy.
Weather Situation
A series of cold fronts will move across the south coast, maintaining a showery westerly flow across the local waters until Tuesday. A new ridge will extend over southern WA from later Tuesday, before sinking to the south coast on Thursday as a trough develops over inland South West Land Division and inland Gascoyne.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Third Rocks Temperature Statistics View More

March Temperature

Garden Island (8km)

  • Lowest 1 March, 2026

    14.3 °C

  • Average March

    22.2 °C

  • Highest 18 March, 2026

    36.6 °C

Climate (2021–Present)

Garden Island (8km)

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  • Average Low 2021–2026

    15.1 °C

  • Average 2021–2026

    18.9 °C

  • Average High 2021–2026

    23.3 °C
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