Perth FAD3 (offshore) Weather Forecast

    • 16
    • 18

    Shower

    • 16
    • 18

    Partly cloudy

    • 16
    • 20

    Sunny

    • 17
    • 21

    Sunny

    • 19
    • 21

    Sunny

    • 19
    • 21

    Sunny

    • 19
    • 20

    Sunny

Today 19 Sep Perth

Cloudy. The chance of fog about the hills early this morning. Slight chance of a shower. Light winds becoming south to southwesterly 15 to 20 km/h in the early afternoon then becoming light in the evening.

Perth Coastal Waters

Two Rocks to Dawesville, offshore from Rottnest Island
Wind
Southerly 10 to 15 knots tending southeasterly in the late evening.
Seas
Around 1 metre.
1st Swell
Southwesterly 3 to 4 metres.
Weather
Cloudy.
Weather Situation
A weak front is currently brushing the far southeast. A ridge of high pressure is developing about the central west coast, and slips south through the day. This ridge will dominate the weather pattern into next week, with a trough forming along the west coast.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Perth FAD3 (offshore) Temperature Statistics View More

September Temperature

Rottnest Island (46km)

  • Lowest 8 September, 2025

    8.2 °C

  • Average September

    15 °C

  • Highest 12 September, 2025

    22.4 °C

Climate (2020–Present)

Rottnest Island (46km)

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  • Average Low 2020–2025

    16 °C

  • Average 2020–2025

    18.9 °C

  • Average High 2020–2025

    22.8 °C
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