Porpoise Bay Weather Forecast

    • 12
    • 17

    Sunny

    • 12
    • 17

    Sunny

    • 12
    • 19

    Sunny

    • 13
    • 19

    Sunny

    • 14
    • 21

    Sunny

    • 16
    • 19

    Showers. Windy

    • 13
    • 17

    Possible shower

Today 12 Aug Lower West

Sunny. Light winds.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Variable below 10 knots.
Seas
Below 0.5 metres.
1st Swell
Southwesterly 1.5 to 2.5 metres.
Weather
Sunny.
Weather Situation
A ridge will remain slow moving in the vicinity for the remainder of the week.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Porpoise Bay Temperature Statistics View More

August Temperature

Rottnest Island (3km)

  • Lowest 9 August, 2026

    7.4 °C

  • Average August

    14.6 °C

  • Highest 3 August, 2026

    20.4 °C

Climate (2021–2026)

Rottnest Island (3km)

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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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