Third Rocks Weather Forecast

    • 11
    • 24

    Partly cloudy

    • 15
    • 18

    Rain

    • 14
    • 22

    Shower or two

    • 15
    • 22

    Partly cloudy

    • 14
    • 21

    Possible shower

    • 11
    • 18

    Possible shower

    • 9
    • 18

    Partly cloudy

Today 26 Apr Perth

Partly cloudy. Light winds.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Southerly 10 to 15 knots decreasing to about 10 knots in the late evening.
Seas
Below 1 metre.
1st Swell
Southwesterly 1 to 1.5 metres.
Weather
Partly cloudy.
Weather Situation
A weak ridge extends through the area, and will move into the Bight tonight night as a trough deepens down the west coast. A cold front will sweep by the south coast during Monday, dragging the west coast trough further inland.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Third Rocks Temperature Statistics View More

April Temperature

Garden Island (8km)

  • Lowest 22 April, 2026

    11.7 °C

  • Average April

    18.8 °C

  • Highest 3 April, 2026

    28.7 °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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