Swan River - Heirisson Island Weather Forecast

    • 23
    • 36

    Mostly clear

    • 21
    • 34

    Mostly sunny

    • 20
    • 32

    Mostly sunny

    • 18
    • 33

    Sunny

    • 18
    • 32

    Mostly sunny

    • 17
    • 31

    Sunny

    • 17
    • 32

    Sunny

Today 19 Mar Perth

Mostly clear. Light winds.

Melville Waters

Wind
South to southeasterly below 10 knots becoming westerly in the late evening.
Weather
Clear.
Weather Situation
A west coast trough will move inland later Saturday, ahead of a weak cold front brushing past the south coast on Sunday. A new ridge will arrive on the southwest coast on Sunday, building east along the south coast on Monday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Swan River - Heirisson Island Temperature Statistics View More

March Temperature

Perth Metro (5km)

  • Lowest 1 March, 2026

    11.8 °C

  • Average March

    24.2 °C

  • Highest 7 March, 2026

    40.3 °C

Climate (2021–Present)

Perth Metro (5km)

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  • Average Low 2021–2026

    13.4 °C

  • Average 2021–2026

    18.9 °C

  • Average High 2021–2026

    25.5 °C
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