Portsea Surf Beach Weather Forecast

    • 14
    • 27

    Partly cloudy

    • 16
    • 22

    Windy

    • 12
    • 17

    Cloudy

    • 13
    • 19

    Partly cloudy

    • 14
    • 24

    Partly cloudy

    • 15
    • 25

    Partly cloudy

    • 16
    • 22

    Shower

Today 29 Dec Mornington Peninsula

Clear. Winds southeasterly 15 to 25 km/h tending easterly in the evening.

Port Phillip Local Waters

Wind
Southeasterly 10 to 15 knots turning easterly in the evening.
Seas
Below 1 metre.
Weather
Clear.
Weather Situation
A weak ridge of high pressure over Victoria will be cleared by a trough, entering from the west late Monday, crossing the coast through Tuesday. A new ridge of high pressure will develop across the south on Wednesday, persisting across the coast into Friday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Portsea Surf Beach Temperature Statistics View More

December Temperature

Avalon Airport (39km)

  • Lowest 7 December, 2025

    6.6 °C

  • Average December

    16.6 °C

  • Highest 18 December, 2025

    39.5 °C

Climate (2020–Present)

Avalon Airport (39km)

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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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