Marjorie Bay Weather Forecast

    • 19
    • 28

    Sunny

    • 22
    • 31

    Possible storm

    • 21
    • 28

    Mostly sunny

    • 20
    • 25

    Partly cloudy

    • 18
    • 25

    Becoming windy. Partly cloudy

    • 17
    • 25

    Wind easing. Sunny

    • 18
    • 26

    Becoming windy. Sunny

Today 13 Dec Lower West

Mostly sunny. The chance of a thunderstorm in the north during this afternoon and evening, possibly severe with damaging winds. Winds easterly 25 to 40 km/h. Daytime maximum temperatures in the mid to high 30s.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Southeasterly 10 to 15 knots tending southerly 15 to 20 knots in the middle of the day then turning east to southeasterly 10 to 15 knots in the evening.
Seas
Around 1 metre, increasing to 1 to 1.5 metres during the afternoon.
1st Swell
Southwesterly around 1 metre.
Weather
Sunny.
Weather Situation
A trough extending south through the Gascoyne will deepen near the west today. The trough will move offshore from the Local Waters on Sunday as a strengthening high pressure system moves into the Bight.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Marjorie Bay Temperature Statistics View More

December Temperature

Rottnest Island (3km)

  • Lowest 4 December, 2025

    16.7 °C

  • Average December

    20.7 °C

  • Highest 1 December, 2025

    36.2 °C

Climate (2020–Present)

Rottnest Island (3km)

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  • Average Low 2020–2025

    16.1 °C

  • Average 2020–2025

    18.9 °C

  • Average High 2020–2025

    22.8 °C
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