Swan Island Weather Forecast

    • 14
    • 20

    Cloudy

    • 11
    • 18

    Shower

    • 11
    • 19

    Cloudy

    • 12
    • 18

    Shower

    • 11
    • 20

    Windy

    • 11
    • 18

    Windy

    • 11
    • 18

    Cloudy

Today 20 Dec Central

Partly cloudy. Medium chance of showers in the east, slight chance elsewhere. The chance of a thunderstorm about the ranges in the morning and early afternoon. Winds west to southwesterly 15 to 25 km/h turning south to southeasterly in the afternoon. Overnight temperatures falling to between 11 and 15 with daytime temperatures reaching 21 to 27.

Port Phillip Local Waters

Wind
Southwesterly 10 to 15 knots turning south to southeasterly 15 to 20 knots during the afternoon and evening.
Seas
Around 1 metre.
Weather
Partly cloudy.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Swan Island Temperature Statistics View More

December Temperature

Avalon Airport (30km)

  • Lowest 7 December, 2025

    6.6 °C

  • Average December

    17.2 °C

  • Highest 18 December, 2025

    39.5 °C

Climate (2020–Present)

Avalon Airport (30km)

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  • Average Low 2020–2025

    9.6 °C

  • Average 2020–2025

    14.5 °C

  • Average High 2020–2025

    20.4 °C
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