Twin Karns Beach Weather Forecast

    • 22
    • 36

    Fog

    • 17
    • 26

    Fog

    • 17
    • 22

    Shower

    • 16
    • 23

    Windy

    • 13
    • 24

    Partly cloudy

    • 15
    • 21

    Cloudy

    • 13
    • 22

    Partly cloudy

Today 15 Dec South West

Mostly sunny. The chance of a thunderstorm in the south. Thunderstorms possibly severe with damaging winds in the east. Winds north to northwesterly 25 to 40 km/h tending west to northwesterly 25 to 35 km/h in the early afternoon then decreasing to 15 to 20 km/h in the evening.

Leeuwin Coastal Waters

Cape Naturaliste to Walpole
Wind
North to northwesterly 10 to 15 knots tending west to northwesterly in the early afternoon. Winds reaching up to 20 knots offshore east of Cape Leeuwin in the early afternoon.
Seas
Around 1 metre.
1st Swell
Southwesterly 1.5 metres.
Weather
Partly cloudy. The chance of fog with reduced visibility later this evening, mainly east of Cape Leeuwin.
Weather Situation
A deep trough near the west coast is slowly moving inland as a high pressure system in the Bight moves east. The trough will move further inland on Tuesday 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

Twin Karns Beach Temperature Statistics View More

December Temperature

Cape Leeuwin (47km)

  • Lowest 4 December, 2025

    16 °C

  • Average December

    19.4 °C

  • Highest 1 December, 2025

    26 °C

Climate (2020–Present)

Cape Leeuwin (47km)

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  • Average Low 2020–2025

    14.9 °C

  • Average 2020–2025

    17.5 °C

  • Average High 2020–2025

    20.7 °C
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