Marjorie Bay Weather Forecast

    • 17
    • 25

    Very windy. Sunny

    • 17
    • 27

    Very windy. Sunny

    • 17
    • 27

    Wind easing. Sunny

    • 20
    • 28

    Sunny

    • 21
    • 27

    Sunny

    • 21
    • 26

    Sunny

    • 19
    • 25

    Mostly sunny

Today 28 Dec Lower West

Sunny. Winds southerly 15 to 25 km/h tending southeasterly 20 to 30 km/h before dawn then turning south to southwesterly 25 to 40 km/h in the late morning. Daytime maximum temperatures around 30.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Southerly 20 to 30 knots tending south to southeasterly 15 to 25 knots before dawn then becoming south to southwesterly 25 to 30 knots in the afternoon.
Seas
1.5 to 2.5 metres, decreasing to 1 to 1.5 metres during the morning, then increasing to 2 to 2.5 metres during the afternoon.
1st Swell
Southwesterly 1 to 1.5 metres, decreasing to around 1 metre around midday.
Weather
Sunny.
Weather Situation
A ridge is developing along the south coast during the weekend in the wake of a trough that has moved inland.
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 21 December, 2025

    14.6 °C

  • Average December

    21.6 °C

  • Highest 25 December, 2025

    40.9 °C

Climate (2020–Present)

Rottnest Island (3km)

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  • Average Low 2020–2025

    16.1 °C

  • Average 2020–2025

    19 °C

  • Average High 2020–2025

    22.8 °C
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