Marjorie Bay Weather Forecast

    • 14
    • 18

    Clear

    • 13
    • 19

    Sunny

    • 14
    • 18

    Partly cloudy

    • 13
    • 17

    Possible shower

    • 12
    • 17

    Partly cloudy

    • 14
    • 19

    Showers

    • 14
    • 17

    Showers

Today 20 Aug Lower West

Clear. Light winds.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
South to southeasterly below 10 knots.
Seas
Below 0.5 metres.
1st Swell
West to southwesterly 2 to 3 metres.
Weather
Clear.
Weather Situation
A weak ridge lies across southern WA. A trough will deepen down the west coast from late Friday, pushing inland later on Saturday ahead of a weak front reaching the lower west coast during Sunday. A new ridge will develop over the area later Sunday and Monday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Marjorie Bay Temperature Statistics View More

August Temperature

Rottnest Island (3km)

  • Lowest 9 August, 2026

    7.4 °C

  • Average August

    15.3 °C

  • Highest 16 August, 2026

    23.2 °C

Climate (2021–2026)

Rottnest Island (3km)

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  • Average Low 2021–2026

    16.1 °C

  • Average 2021–2026

    18.9 °C

  • Average High 2021–2026

    22.8 °C
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