Rottnest Island Weather Forecast

    • 9
    • 15

    Possible shower

    • 10
    • 16

    Showers increasing

    • 11
    • 17

    Partly cloudy

    • 10
    • 17

    Sunny

    • 10
    • 18

    Sunny

    • 12
    • 18

    Sunny

    • 12
    • 18

    Sunny

Today 26 Aug Lower West

Partly cloudy. Slight chance of a shower near the coast, near zero chance elsewhere. Winds south to southwesterly 15 to 25 km/h becoming light in the late evening.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Southerly 15 to 20 knots.
Seas
1 to 1.5 metres.
1st Swell
Southwesterly 2 to 2.5 metres.
Weather
Partly cloudy.
Weather Situation
A cold southwesterly air flow and a series of troughs will clear east from Thursday, as a new ridge becomes the dominant weather pattern until next week.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Rottnest Island Temperature Statistics View More

August Temperature

Rottnest Island (3km)

  • Lowest 25 August, 2025

    8.1 °C

  • Average August

    15.4 °C

  • Highest 13 August, 2025

    22.4 °C

Climate (2020–Present)

Rottnest Island (3km)

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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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