Sandy Island Weather Forecast

    • 17
    • 25

    Partly cloudy

    • 16
    • 23

    Shower or two. Wind easing

    • 15
    • 21

    Windy. Cloudy

    • 13
    • 23

    Wind easing. Partly cloudy

    • 14
    • 20

    Wind easing. Cloudy

    • 12
    • 21

    Partly cloudy

    • 14
    • 21

    Becoming windy. Cloudy

Today 16 Dec South West

Partly cloudy. The chance of smoke haze. Winds westerly 20 to 30 km/h becoming light in the late evening.

Leeuwin Coastal Waters

Cape Naturaliste to Walpole
Wind
Westerly 10 to 15 knots turning northwesterly 15 to 20 knots in the evening. Winds reaching up to 25 knots offshore east of Cape Leeuwin in the late evening.
Seas
Below 1 metre.
1st Swell
Southwesterly 1.5 metres.
Weather
Partly cloudy. The chance of a thunderstorm east of Cape Leeuwin in the afternoon.
Weather Situation
A deep trough lies inland of the west coast and will move east across the South West Land Division ahead of a weak cold front brushing the south coast. A new ridge building across the southwest coast by Wednesday will extend along southern WA on Thursday. A new west coast trough will form on Friday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Sandy Island Temperature Statistics View More

December Temperature

Windy Harbour (3km)

  • Lowest 13 December, 2025

    0.8 °C

  • Average December

    21.2 °C

  • Highest 14 December, 2025

    28 °C

Climate (2020–Present)

Windy Harbour (3km)

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  • Average Low 2020–2025

    11.2 °C

  • Average 2020–2025

    17 °C

  • Average High 2020–2025

    20.4 °C
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