Swan River - Heirisson Island Weather Forecast

    • 15
    • 21

    Clear

    • 11
    • 22

    Mostly sunny

    • 11
    • 22

    Showers increasing

    • 13
    • 19

    Showers easing

    • 9
    • 21

    Mostly sunny

    • 13
    • 21

    Showers

    • 12
    • 21

    Partly cloudy

Today 18 Apr Perth

Clear. Light winds.

Melville Waters

Wind
South to southeasterly below 10 knots.
Weather
Mostly clear.
Weather Situation
A ridge will extend over the local waters this weekend, ahead of the next cold front on Monday night.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Swan River - Heirisson Island Temperature Statistics View More

April Temperature

Perth Metro (5km)

  • Lowest 1 April, 2026

    9.8 °C

  • Average April

    19.5 °C

  • Highest 12 April, 2026

    31.3 °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

    25.4 °C
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