Porpoise Bay Weather Forecast

    • 17
    • 24

    Mostly clear

    • 16
    • 21

    Shower or two. Wind easing

    • 15
    • 21

    Shower or two

    • 17
    • 21

    Shower or two. Becoming windy

    • 15
    • 19

    Possible shower. Wind easing

    • 12
    • 21

    Wind easing. Sunny

    • 14
    • 24

    Sunny

Today 28 Oct Lower West

Mostly clear. Winds west to southwesterly 15 to 25 km/h.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Southwesterly 15 to 20 knots.
Seas
Around 1 metre.
1st Swell
West to southwesterly 1 to 1.5 metres.
Weather
Mostly clear.
Weather Situation
A ridge sits over the local waters with a west coast trough developing. The trough begins moving east this afternoon. A cold front then arrives on Wednesday, with showers about until the next cold front over the local waters on Friday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Porpoise Bay Temperature Statistics View More

October Temperature

Rottnest Island (3km)

  • Lowest 21 October, 2025

    11.2 °C

  • Average October

    16.8 °C

  • Highest 17 October, 2025

    24.7 °C

Climate (2020–Present)

Rottnest Island (3km)

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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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