Marmion Beach Weather Forecast

    • 19
    • 33

    Sunny

    • 23
    • 36

    Possible shower or storm

    • 23
    • 31

    Mostly sunny

    • 19
    • 26

    Partly cloudy

    • 17
    • 26

    Becoming windy. Partly cloudy

    • 17
    • 30

    Sunny

    • 18
    • 31

    Sunny

Today 13 Dec Perth

Mostly sunny. The chance of a thunderstorm about the northern suburbs in the afternoon and evening. Winds easterly 25 to 40 km/h decreasing to 15 to 25 km/h in the evening.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
South to southeasterly 15 to 20 knots tending east to southeasterly 10 to 15 knots in the evening.
Seas
Around 1 metre, increasing to 1 to 1.5 metres during the afternoon.
1st Swell
Southwesterly around 1 metre.
Weather
Sunny.
Weather Situation
A trough extending south through the Gascoyne will deepen near the west today. The trough will move offshore from the Local Waters on Sunday as a strengthening high pressure system moves into the Bight.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Marmion Beach Temperature Statistics View More

December Temperature

Swanbourne (13km)

  • Lowest 4 December, 2025

    14.6 °C

  • Average December

    21.5 °C

  • Highest 1 December, 2025

    38.4 °C

Climate (2020–Present)

Swanbourne (13km)

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  • Average Low 2020–2025

    14.5 °C

  • Average 2020–2025

    18.9 °C

  • Average High 2020–2025

    24.3 °C
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