Cockburn Sound Weather Forecast

    • 14
    • 19

    Shower or two

    • 10
    • 19

    Partly cloudy

    • 9
    • 20

    Sunny

    • 10
    • 20

    Partly cloudy

    • 11
    • 18

    Shower or two

    • 8
    • 17

    Partly cloudy

    • 9
    • 18

    Shower or two

Today 19 Aug Perth

Partly cloudy. Medium chance of showers, becoming less likely this afternoon. Light winds.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Westerly 10 to 15 knots becoming southwesterly below 10 knots in the evening.
Seas
Around 1 metre, decreasing below 0.5 metres around midday.
1st Swell
West to southwesterly 2.5 to 3 metres.
Weather
Partly cloudy. 50% chance of showers.
Weather Situation
A weak ridge lies to the north. A weak cold front will brush past the southwest corner of the state on Wednesday. The ridge further north will shift to southern WA on Thursday and Friday. A trough develops over the South West Land Division on Saturday, ahead of another cold front on Sunday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cockburn Sound Temperature Statistics View More

August Temperature

Garden Island (6km)

  • Lowest 11 August, 2026

    7.7 °C

  • Average August

    14.6 °C

  • Highest 16 August, 2026

    23.7 °C

Climate (2021–2026)

Garden Island (6km)

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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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