Porpoise Bay Weather Forecast

    • 15
    • 19

    Possible shower

    • 13
    • 18

    Shower or two. Becoming windy

    • 12
    • 17

    Showers easing. Windy

    • 11
    • 19

    Wind easing. Partly cloudy

    • 12
    • 21

    Partly cloudy

    • 14
    • 23

    Sunny

    • 17
    • 24

    Partly cloudy

Today 22 Oct Lower West

Cloudy. Medium chance of showers, becoming less likely this morning. Winds southwesterly 15 to 25 km/h. Daytime maximum temperatures between 17 and 21.

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 2.5 to 4 metres.
Weather
Partly cloudy.
Weather Situation
A weak cold front crossed the southwest of the state early Thursday morning, with further weak fronts expected over the next few days. A new ridge will develop over southern WA on the weekend.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Porpoise Bay Temperature Statistics View More

October Temperature

Rottnest Island (3 km)

  • Lowest 12 October, 2026

    10.8 °C

  • Average October

    17 °C

  • Highest 14 October, 2026

    27.4 °C

Climate (2021–2026)

Rottnest Island (3 km)

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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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