Porpoise Bay Weather Forecast

    • 13
    • 20

    Sunny

    • 13
    • 20

    Mostly sunny

    • 14
    • 20

    Wind easing. Cloudy

    • 15
    • 21

    Shower or two. Windy

    • 15
    • 20

    Shower or two

    • 15
    • 20

    Showers

    • 14
    • 19

    Showers

Today 27 Jun Lower West

Sunny. Patches of morning frost inland. Light winds. Daytime maximum temperatures around 20.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
East to northeasterly about 10 knots tending east to southeasterly 10 to 15 knots in the evening.
Seas
Below 1 metre.
1st Swell
West to southwesterly 2 metres, increasing to 2 to 3 metres during the morning.
Weather
Sunny.
Weather Situation
A high pressure system drifting across the Great Australian Bight dominates the weather pattern. A cold front approaches the southwest on Monday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Porpoise Bay Temperature Statistics View More

June Temperature

Rottnest Island (3km)

  • Lowest 22 June, 2025

    9.4 °C

  • Average June

    17.1 °C

  • Highest 3 June, 2025

    22.9 °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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