Swan River - Mosman Bay Weather Forecast

    • 12
    • 19

    Partly cloudy

    • 12
    • 18

    Shower or two

    • 11
    • 19

    Partly cloudy

    • 11
    • 21

    Mostly sunny

    • 12
    • 23

    Sunny

    • 13
    • 26

    Sunny

    • 15
    • 27

    Sunny

Today 17 Sep Perth

Partly cloudy. Slight chance of a shower, becoming less likely later this evening. Winds westerly 15 to 25 km/h turning southwesterly 15 to 20 km/h in the evening.

Melville Waters

Wind
Southwesterly 10 to 15 knots decreasing to about 10 knots in the evening.
Weather
Partly cloudy.
Weather Situation
A series of weak fronts brush the southern coast until Friday. A ridge of high pressure is developing to the north, slips south of the Local Waters on Saturday, and will dominate the weather pattern into next week.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Swan River - Mosman Bay Temperature Statistics View More

September Temperature

Swanbourne (5km)

  • Lowest 8 September, 2025

    6.2 °C

  • Average September

    13.9 °C

  • Highest 12 September, 2025

    26 °C

Climate (2020–Present)

Swanbourne (5km)

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  • Average Low 2020–2025

    14.5 °C

  • Average 2020–2025

    18.9 °C

  • Average High 2020–2025

    24.3 °C
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