Porpoise Bay Weather Forecast

    • 16
    • 24

    Becoming windy. Sunny

    • 19
    • 26

    Sunny

    • 21
    • 27

    Sunny

    • 19
    • 25

    Becoming windy. Sunny

    • 18
    • 23

    Windy. Partly cloudy

    • 15
    • 26

    Windy. Mostly sunny

    • 17
    • 26

    Sunny

Today 17 Feb Lower West

Sunny. Winds east to southeasterly 20 to 30 km/h tending south to southeasterly in the early afternoon. Daytime maximum temperatures around 30.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Southeasterly 10 to 15 knots tending southerly 15 to 20 knots in the middle of the day.
Seas
Around 1 metre, increasing to 1.5 metres during the afternoon.
1st Swell
Southwesterly 1 to 1.5 metres.
Weather
Sunny.
Weather Situation
A ridge is strengthening over the southwest and will build across southern WA this week. A west coast trough will return on Wednesday, deepening on Thursday before moving inland later in the day.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Porpoise Bay Temperature Statistics View More

February Temperature

Rottnest Island (3km)

  • Lowest 12 February, 2026

    16.4 °C

  • Average February

    22.7 °C

  • Highest 2 February, 2026

    39.4 °C

Climate (2021–Present)

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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