Perth FAD4 (offshore) Weather Forecast

    • 18
    • 21

    Windy

    • 19
    • 22

    Windy

    • 19
    • 22

    Windy

    • 21
    • 23

    Sunny

    • 22
    • 23

    Partly cloudy

    • 21
    • 22

    Sunny

    • 21
    • 22

    Partly cloudy

Today 28 Dec Lower West

Sunny. Winds south to southeasterly 25 to 35 km/h tending south to southwesterly 25 to 40 km/h in the early afternoon.

Perth Coastal Waters

Two Rocks to Dawesville, offshore from Rottnest Island
Wind
Southerly 20 to 30 knots.
Seas
1 to 1.5 metres, increasing to 2 to 2.5 metres during the afternoon.
1st Swell
Southwesterly 1 to 2 metres.
Weather
Sunny.
Weather Situation
A ridge is developing along the south coast, driving a southeasterly airstream through southern and central parts. A trough will develop down the west coast from Tuesday, moving into inland western parts late Thursday or Friday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Perth FAD4 (offshore) Temperature Statistics View More

December Temperature

Rottnest Island (43km)

  • Lowest 21 December, 2025

    14.6 °C

  • Average December

    21.6 °C

  • Highest 25 December, 2025

    40.9 °C

Climate (2020–Present)

Rottnest Island (43km)

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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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