Port Phillip Offshore Weather Forecast

    • 18
    • 21

    Sunny

    • 19
    • 21

    Shower

    • 15
    • 16

    Partly cloudy

    • 15
    • 17

    Shower

    • 14
    • 16

    Cloudy

    • 14
    • 16

    Shower

    • 14
    • 16

    Windy

Today 18 Dec Central

Mostly sunny. Slight chance of a shower near the Otways in the evening. Near zero chance of rain elsewhere. The chance of a thunderstorm near the coast at night. Winds west to northwesterly 25 to 35 km/h tending southeast to southwesterly 20 to 30 km/h in the late afternoon then becoming light in the late evening. Daytime maximum temperatures 33 to 39.

Central Victoria Coastal Waters

Cape Otway to Wilsons Promontory
Wind
Variable about 10 knots becoming south to southeasterly 10 to 15 knots in the early afternoon then shifting north to northeasterly in the evening.
Seas
Below 1 metre.
1st Swell
Southwesterly below 1 metre, increasing to 1 to 1.5 metres in the west.
Weather
Partly cloudy. The chance of a thunderstorm at night.
Weather Situation
A high pressure system in the Tasman Sea maintains a ridge across Victoria, until a broad area of low pressure develops to the west later today. The low is forecast to slowly move across the state during Friday and Saturday, before another low and associated cold front move across Victoria on Sunday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Port Phillip Offshore Temperature Statistics View More

December Temperature

Avalon Airport (42km)

  • Lowest 7 December, 2025

    6.6 °C

  • Average December

    16.3 °C

  • Highest 4 December, 2025

    34.8 °C

Climate (2020–Present)

Avalon Airport (42km)

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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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