Swan River - Northbank Marina Weather Forecast

    • 12
    • 18

    Possible shower

    • 12
    • 19

    Possible morning shower

    • 11
    • 21

    Mostly sunny

    • 12
    • 24

    Sunny

    • 13
    • 26

    Sunny

    • 15
    • 27

    Sunny

    • 15
    • 27

    Sunny

Today 18 Sep Perth

Cloudy. Slight chance of a shower about the southern suburbs, most likely later this evening. Near zero chance of rain elsewhere. Winds south to southwesterly 15 to 20 km/h becoming light in the late evening.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Southwesterly 10 to 15 knots.
Seas
Below 1 metre.
1st Swell
Southwesterly 2 to 3 metres.
Weather
Cloudy.
Weather Situation
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

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Swan River - Northbank Marina Temperature Statistics View More

September Temperature

Swanbourne (9km)

  • Lowest 8 September, 2025

    6.2 °C

  • Average September

    14.3 °C

  • Highest 12 September, 2025

    26 °C

Climate (2020–Present)

Swanbourne (9km)

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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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