Swan River - Rocky Bay Weather Forecast

    • 15
    • 26

    Clear

    • 16
    • 26

    Sunny

    • 17
    • 29

    Sunny

    • 18
    • 28

    Sunny

    • 17
    • 31

    Sunny

    • 17
    • 34

    Sunny

    • 22
    • 38

    Mostly sunny

Today 8 Dec Perth

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

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
South to southwesterly 15 to 25 knots.
Seas
1 to 1.5 metres, increasing to 1.5 to 2 metres during the afternoon.
1st Swell
Southwesterly around 1 metre.
Weather
Sunny.
Weather Situation
A new ridge to the south of the Local Waters will persist through Tuesday, before a west coast trough deepens on Wednesday. The west coast trough will push inland on Thursday ahead of a new ridge approaching from the west.
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Swan River - Rocky Bay Temperature Statistics View More

December Temperature

Swanbourne (7km)

  • Lowest 4 December, 2025

    14.6 °C

  • Average December

    20.8 °C

  • Highest 1 December, 2025

    38.4 °C

Climate (2020–Present)

Swanbourne (7km)

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  • Average Low 2020–2025

    14.5 °C

  • Average 2020–2025

    18.9 °C

  • Average High 2020–2025

    24.3 °C
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