Swan River - Mounts Bay Weather Forecast

    • 19
    • 35

    Sunny

    • 19
    • 37

    Sunny

    • 25
    • 40

    Possible shower or storm

    • 24
    • 37

    Mostly sunny

    • 21
    • 31

    Partly cloudy

    • 19
    • 29

    Mostly sunny

    • 19
    • 29

    Partly cloudy

Today 12 Dec Perth

Sunny. Winds southeasterly 25 to 35 km/h.

Melville Waters

Wind
South to southeasterly 15 to 20 knots.
Weather
Sunny.
Weather Situation
An inland trough will move closer to the west coast by the weekend where it will deepen. The trough will move offshore from the Local Waters on Sunday as a high pressure system moves into the Bight and strengthens.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Swan River - Mounts Bay Temperature Statistics View More

December Temperature

Perth Metro (6km)

  • Lowest 4 December, 2025

    14.6 °C

  • Average December

    22.1 °C

  • Highest 1 December, 2025

    39 °C

Climate (2020–Present)

Perth Metro (6km)

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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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