Marjorie Bay Weather Forecast

    • 10
    • 17

    Clear

    • 11
    • 18

    Sunny

    • 11
    • 20

    Mostly sunny

    • 14
    • 21

    Showers. Windy

    • 13
    • 17

    Shower or two

    • 10
    • 17

    Partly cloudy

    • 11
    • 20

    Mostly sunny

Today 23 Jul Lower West

Clear. Light winds.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Easterly about 10 knots increasing to 10 to 15 knots in the evening.
Seas
Below 1 metre.
1st Swell
Southwesterly 1 to 1.5 metres.
Weather
Clear.
Weather Situation
A high pressure centre near the western south coast extends a ridge over southern parts of the state. The ridge will persist over the region for the remainder of the week as the high pressure centre slowly moves east. A cold front will then cross the local waters on Sunday, followed by another ridge which will develop over southern WA from Monday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Marjorie Bay Temperature Statistics View More

July Temperature

Rottnest Island (3km)

  • Lowest 1 July, 2026

    9.9 °C

  • Average July

    15.6 °C

  • Highest 15 July, 2026

    21.8 °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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