Marmion Weather Forecast

    • 10
    • 22

    Sunny

    • 11
    • 22

    Partly cloudy

    • 9
    • 22

    Sunny

    • 12
    • 23

    Partly cloudy

    • 13
    • 24

    Sunny

    • 15
    • 21

    Showers easing

    • 14
    • 20

    Shower or two

Today 7 Sep Perth

Mostly sunny. Winds southeasterly 15 to 20 km/h.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Southerly 15 to 20 knots tending southeasterly in the evening.
Seas
Around 1 metre.
1st Swell
Southwesterly 1.5 to 2.5 metres.
Weather
Sunny.
Weather Situation
A high in the Bight is directing southeasterly winds across the Local Waters. Winds tending easterly on Wednesday as the high starts to move away, with a trough developing near the west coast on Thursday. A cold front will approach Local Waters on Friday evening.
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  • Temperature Forecast Bureau of Meteorology

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Marmion Temperature Statistics View More

September Temperature

Swanbourne (12km)

  • Lowest 1 September, 2026

    9.6 °C

  • Average September

    15 °C

  • Highest 3 September, 2026

    19.2 °C

Climate (2021–2026)

Swanbourne (12km)

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  • Average Low 2021–2026

    14.5 °C

  • Average 2021–2026

    18.8 °C

  • Average High 2021–2026

    24.3 °C
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