Perth FAD2 (offshore) Weather Forecast

    • 17
    • 18

    Partly cloudy

    • 18
    • 18

    Partly cloudy

    • 18
    • 18

    Partly cloudy

    • 17
    • 18

    Shower

    • 17
    • 18

    Shower

    • 16
    • 18

    Shower

    • 15
    • 17

    Shower

Today 20 Sep Lower West

Mostly clear. Light winds.

Perth Coastal Waters

Two Rocks to Dawesville, offshore from Rottnest Island
Wind
Southerly below 10 knots.
Seas
Below 0.5 metres.
1st Swell
Southwesterly 2.5 to 3 metres.
Weather
Clear.
Weather Situation
A ridge builds over the southwest with a west coast trough today. The trough moves eastward on Tuesday as a cold front passes to the south of the State Monday night and Tuesday. The next cold front reaches the southwest corner on Thursday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Perth FAD2 (offshore) Temperature Statistics View More

September Temperature

Rottnest Island (48km)

  • Lowest 9 September, 2026

    11.5 °C

  • Average September

    16.7 °C

  • Highest 16 September, 2026

    27.8 °C

Climate (2021–2026)

Rottnest Island (48km)

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  • Average Low 2021–2026

    16.1 °C

  • Average 2021–2026

    18.9 °C

  • Average High 2021–2026

    22.8 °C
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