Swan River - Northbank Marina Weather Forecast

    • 19
    • 33

    Clear

    • 23
    • 39

    Possible shower or storm

    • 24
    • 31

    Mostly sunny

    • 19
    • 26

    Partly cloudy

    • 17
    • 26

    Cloud clearing

    • 17
    • 30

    Sunny

    • 18
    • 31

    Mostly sunny

Today 13 Dec Perth

Mostly clear. The chance of a thunderstorm about the northern suburbs. Winds easterly 15 to 25 km/h increasing to 25 to 35 km/h in the late evening.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
South to southeasterly 15 to 20 knots tending east to southeasterly 10 to 15 knots in the evening.
Seas
1 to 1.5 metres.
1st Swell
Southwesterly below 1 metre.
Weather
Clear.
Weather Situation
A west coast trough will move offshore on Sunday and a weak low pressure system will develop within the trough, as a high pressure system strengthens in the Bight. The high will move east on Monday, allowing the trough to return to the west coast. The trough will move inland ahead of a cold front brushing the south coast on Tuesday. A new ridge will build across the southwest coast from Wednesday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Swan River - Northbank Marina Temperature Statistics View More

December Temperature

Swanbourne (9km)

  • Lowest 4 December, 2025

    14.6 °C

  • Average December

    21.5 °C

  • Highest 1 December, 2025

    38.4 °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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