Twin Karns Beach Weather Forecast

    • 11
    • 22

    Cloudy

    • 16
    • 22

    Cloudy

    • 13
    • 26

    Windy

    • 14
    • 33

    Sunny

    • 21
    • 38

    Partly cloudy

    • 19
    • 25

    Cloudy

    • 16
    • 23

    Cloudy

Today 21 Dec South West

Partly cloudy. Light winds becoming southerly 15 to 25 km/h in the middle of the day then becoming light in the late evening. Overnight temperatures falling to between 7 and 11 with daytime temperatures reaching 22 to 28.

Leeuwin Coastal Waters

Cape Naturaliste to Walpole
Wind
Southeasterly 10 to 15 knots becoming variable about 10 knots in the early morning then becoming south to southwesterly 10 to 15 knots in the middle of the day. Winds reaching up to 20 knots offshore north of Cape Leeuwin in the evening.
Seas
Around 1 metre.
1st Swell
Southwesterly 2 to 3 metres.
Weather
Cloudy.
Weather Situation
A ridge will develop across much of southern WA on Sunday, while a trough lies across the Interior. A weak front will brush the south coast on Monday, followed by the west coast trough returning by Tuesday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Twin Karns Beach Temperature Statistics View More

December Temperature

Cape Leeuwin (47km)

  • Lowest 20 December, 2025

    15.9 °C

  • Average December

    19.7 °C

  • Highest 15 December, 2025

    31.7 °C

Climate (2020–Present)

Cape Leeuwin (47km)

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  • Average Low 2020–2025

    15 °C

  • Average 2020–2025

    17.5 °C

  • Average High 2020–2025

    20.8 °C
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