Marmion Weather Forecast

    • 22
    • 31

    Mostly clear

    • 19
    • 28

    Partly cloudy

    • 18
    • 25

    Partly cloudy

    • 16
    • 30

    Sunny

    • 18
    • 29

    Sunny

    • 17
    • 28

    Becoming windy. Sunny

    • 15
    • 28

    Sunny

Today 15 Dec Perth

Mostly clear. The chance of smoke haze. Light winds.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Variable below 10 knots.
Seas
Below 0.5 metres.
1st Swell
Southwesterly around 1 metre.
Weather
Partly cloudy. The chance of fog with reduced visibility.
Weather Situation
A deep trough near the west coast is moving inland today. A weak cold front will brush past the southwest coast on Tuesday, followed by a new ridge building across the southwest coast from Wednesday. A new west coast trough will form on Friday.
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Marmion Temperature Statistics View More

December Temperature

Swanbourne (12km)

  • Lowest 4 December, 2025

    14.6 °C

  • Average December

    22.8 °C

  • Highest 14 December, 2025

    41.1 °C

Climate (2020–Present)

Swanbourne (12km)

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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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