Mary Cove Weather Forecast

    • 19
    • 24

    Windy. Mostly sunny

    • 17
    • 27

    Windy. Mostly sunny

    • 18
    • 26

    Becoming windy. Sunny

    • 17
    • 26

    Very windy. Sunny

    • 15
    • 25

    Becoming windy. Sunny

    • 17
    • 26

    Windy. Sunny

    • 19
    • 28

    Sunny

Today 17 Dec Lower West

Sunny. Winds southwesterly 25 to 35 km/h turning south to southeasterly 15 to 25 km/h in the late evening.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Southwesterly 10 to 15 knots turning southerly 20 to 25 knots in the afternoon. Winds reaching up to 30 knots in the evening.
Seas
Around 1 metre, increasing to 1.5 to 2 metres during the afternoon.
1st Swell
West to southwesterly 1.5 to 2.5 metres.
Weather
Mostly sunny.
Weather Situation
A ridge extends across the southwest coast today. A west coast trough will form on Friday and move inland during the day, ahead of a new ridge developing on Saturday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Mary Cove Temperature Statistics View More

December Temperature

Rottnest Island (1km)

  • Lowest 4 December, 2025

    16.7 °C

  • Average December

    21.6 °C

  • Highest 14 December, 2025

    37.1 °C

Climate (2020–Present)

Rottnest Island (1km)

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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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