Marmion Beach Weather Forecast

    • 13
    • 24

    Mostly sunny

    • 12
    • 22

    Showers increasing

    • 10
    • 20

    Mostly sunny

    • 8
    • 20

    Sunny

    • 9
    • 22

    Mostly sunny

    • 11
    • 23

    Sunny

    • 13
    • 23

    Shower or two

Today 20 May Perth

Mostly sunny. Winds northeasterly 15 to 25 km/h turning northwesterly 15 to 20 km/h in the middle of the day then becoming light in the late afternoon.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
North to northeasterly 10 to 15 knots becoming variable about 10 knots in the middle of the day.
Seas
Below 1 metre.
1st Swell
Southwesterly 1 to 1.5 metres, increasing to 1 to 2 metres during the morning, then decreasing to 1 to 1.5 metres by early evening.
Weather
Mostly sunny.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Marmion Beach Temperature Statistics View More

May Temperature

Swanbourne (13km)

  • Lowest 2 May, 2026

    7.7 °C

  • Average May

    16.1 °C

  • Highest 11 May, 2026

    26.9 °C

Climate (2021–Present)

Swanbourne (13km)

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  • Average Low 2021–2026

    14.5 °C

  • Average 2021–2026

    18.8 °C

  • Average High 2021–2026

    24.2 °C
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