Cockburn Sound Weather Forecast

    • 15
    • 25

    Clear

    • 15
    • 25

    Sunny

    • 17
    • 27

    Sunny

    • 17
    • 29

    Sunny

    • 18
    • 32

    Sunny

    • 22
    • 31

    Sunny

    • 20
    • 32

    Mostly sunny

Today 6 Dec Perth

Clear. Winds southwesterly 15 to 25 km/h turning southerly 15 to 20 km/h in the evening.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Southerly 15 to 20 knots.
Seas
1.5 metres.
1st Swell
Southwesterly around 1 metre.
Weather
Clear.
Weather Situation
A ridge over the Local Waters will weaken on Sunday night, as a weak cold front moves past the south coast on Monday. A new ridge to the south of the Local Waters will follow in the front's wake.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cockburn Sound Temperature Statistics View More

December Temperature

Garden Island (6km)

  • Lowest 4 December, 2025

    16.4 °C

  • Average December

    20.5 °C

  • Highest 1 December, 2025

    36.8 °C

Climate (2020–Present)

Garden Island (6km)

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  • Average Low 2020–2025

    15.1 °C

  • Average 2020–2025

    18.9 °C

  • Average High 2020–2025

    23.4 °C
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