Swan River - Mosman Bay Weather Forecast

    • 15
    • 27

    Windy. Cloud clearing

    • 14
    • 27

    Becoming windy. Sunny

    • 17
    • 29

    Becoming windy. Sunny

    • 18
    • 33

    Sunny

    • 21
    • 36

    Sunny

    • 24
    • 37

    Sunny

    • 22
    • 28

    Partly cloudy

Today 20 Dec Perth

Mostly sunny. Winds southerly 25 to 35 km/h turning southeasterly 15 to 25 km/h in the evening.

Melville Waters

Wind
Southerly 10 to 15 knots turning southeasterly below 10 knots in the evening.
Weather
Cloud clearing.
Weather Situation
A west coast trough will move inland today followed by a strengthening ridge. Another weak front will brush the south coast on Monday, followed by the west coast trough returning by Tuesday.
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Swan River - Mosman Bay Temperature Statistics View More

December Temperature

Swanbourne (5km)

  • Lowest 4 December, 2025

    14.6 °C

  • Average December

    22.5 °C

  • Highest 14 December, 2025

    41.1 °C

Climate (2020–Present)

Swanbourne (5km)

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  • Average Low 2020–2025

    14.6 °C

  • Average 2020–2025

    18.9 °C

  • Average High 2020–2025

    24.3 °C
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