Swan Island Weather Forecast

    • 10
    • 17

    Windy

    • 11
    • 19

    Cloudy

    • 10
    • 30

    Sunny

    • 14
    • 33

    Sunny

    • 16
    • 27

    Shower

    • 16
    • 24

    Shower

    • 13
    • 21

    Shower

Today 15 Dec Central

Cloudy. Slight chance of a shower in the east in the morning and early afternoon. Near zero chance of rain elsewhere. Winds southwesterly 25 to 35 km/h turning southerly 20 to 30 km/h during the afternoon and evening. Daytime maximum temperatures between 16 and 19.

Port Phillip Local Waters

Wind
Southwesterly 15 to 25 knots turning southerly 10 to 15 knots during the afternoon and evening.
Seas
1 to 1.5 metres.
Weather
Cloudy.
Weather Situation
A high pressure system well to the west directs a southwesterly flow over Victoria, before a ridge moves in from the west by the late evening. The ridge is expected to persist over the state as the high pressure centre moves through Bass Strait on Tuesday, and out to the Tasman Sea by Wednesday. A trough is then forecast to move over Victoria late Thursday.
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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

    16.6 °C

  • Highest 4 December, 2025

    34.8 °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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