Sandy Island Weather Forecast

    • 11
    • 17

    Partly cloudy

    • 8
    • 18

    Partly cloudy

    • 7
    • 18

    Partly cloudy

    • 11
    • 17

    Shower or two

    • 8
    • 18

    Possible shower

    • 10
    • 18

    Showers. Windy

    • 10
    • 17

    Showers. Windy

Today 20 Aug South West

Partly cloudy. Winds westerly 15 to 20 km/h becoming light in the late afternoon.

Leeuwin Coastal Waters

Cape Naturaliste to Walpole
Wind
Westerly 10 to 15 knots decreasing to about 10 knots in the evening.
Seas
Around 1 metre.
1st Swell
Southwesterly 4 metres.
Weather
Partly cloudy.
Weather Situation
A weak ridge lies across southern WA. A trough will deepen down the west coast from late Friday, moving inland later on Saturday ahead of another weak cold front reaching the lower west coast on Sunday. A new ridge will begin to develop across the west coast later Sunday and into Monday behind the trough and as the weak cold front moves east along the south coast.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Sandy Island Temperature Statistics View More

August Temperature

Windy Harbour (3km)

  • Lowest 11 August, 2026

    1.5 °C

  • Average August

    13.4 °C

  • Highest 16 August, 2026

    22.5 °C

Climate (2021–2026)

Windy Harbour (3km)

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  • Average Low 2021–2026

    11 °C

  • Average 2021–2026

    17 °C

  • Average High 2021–2026

    20.4 °C
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