Swan River - Heirisson Island Weather Forecast

    • 9
    • 17

    Shower or two

    • 7
    • 19

    Shower or two

    • 10
    • 19

    Showers

    • 9
    • 18

    Possible shower

    • 10
    • 20

    Partly cloudy

    • 8
    • 23

    Sunny

    • 10
    • 26

    Sunny

Today 15 Sep Perth

Cloudy. Medium chance of showers, becoming less likely in the early afternoon. Winds southwesterly 25 to 35 km/h decreasing to 15 to 20 km/h in the evening then becoming light in the late evening.

Melville Waters

Wind
Southwesterly 15 to 20 knots becoming southerly below 10 knots in the evening.
Weather
Partly cloudy. 60% chance of showers.
Weather Situation
Strong and gusty southwesterly winds this morning in the wake of a cold front. A ridge then builds about the central west coast from today. Another cold front will move into the southwest on Wednesday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Swan River - Heirisson Island Temperature Statistics View More

September Temperature

Perth Metro (5km)

  • Lowest 9 September, 2025

    3.9 °C

  • Average September

    13.6 °C

  • Highest 12 September, 2025

    26.5 °C

Climate (2020–Present)

Perth Metro (5km)

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  • Average Low 2020–2025

    13.4 °C

  • Average 2020–2025

    18.9 °C

  • Average High 2020–2025

    25.5 °C
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