Carnac Island Weather Forecast

    • 9
    • 18

    Partly cloudy

    • 10
    • 20

    Possible shower

    • 11
    • 19

    Showers

    • 10
    • 18

    Shower or two

    • 8
    • 20

    Partly cloudy

    • 8
    • 20

    Mostly sunny

    • 10
    • 22

    Sunny

Today 24 Aug Perth

Partly cloudy. The chance of morning fog about the hills. Light winds.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
East to southeasterly below 10 knots becoming west to northwesterly in the middle of the day.
Seas
Below 0.5 metres.
1st Swell
West to southwesterly 1.5 to 2.5 metres.
Weather
Partly cloudy.
Weather Situation
A ridge extends across the area, moving east on Tuesday. Another cold front will move across the local waters on Wednesday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Carnac Island Temperature Statistics View More

August Temperature

Garden Island (13km)

  • Lowest 11 August, 2026

    7.7 °C

  • Average August

    15 °C

  • Highest 16 August, 2026

    23.7 °C

Climate (2021–2026)

Garden Island (13km)

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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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