Portsea Surf Beach Weather Forecast

    • 18
    • 32

    Windy

    • 14
    • 19

    Partly cloudy

    • 13
    • 19

    Shower

    • 11
    • 16

    Partly cloudy

    • 12
    • 21

    Shower

    • 14
    • 18

    Cloudy

    • 12
    • 18

    Partly cloudy

Today 4 Dec Mornington Peninsula

Partly cloudy. Winds northerly 25 to 35 km/h increasing to 40 to 60 km/h in the early morning then shifting southwesterly 25 to 35 km/h in the evening.

Port Phillip Local Waters

Wind
North to northwesterly 15 to 25 knots increasing to 20 to 30 knots in the morning then tending south to southwesterly 15 to 25 knots in the late afternoon and evening. Winds reaching up to 35 knots during the morning. Squalls to 42 knots possible in the morning.
Seas
1 to 1.5 metres, increasing to 1.5 to 2.5 metres during the morning, then decreasing to 1 to 1.5 metres during the afternoon.
Weather
Partly cloudy. The chance of a thunderstorm with little or no rainfall during this afternoon and early evening.
Weather Situation
A high pressure system over the Tasman Sea directs a northwesterly flow over Victoria, strengthening this morning ahead of a trough which will cross the state later today. Another weak trough and low pressure system are expected to move over Victoria on Friday, before a cold front moves over the south during Saturday. A ridge of high pressure is then forecast to build over the state on Sunday.
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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 3 December, 2025

    7.7 °C
  • Average December

    13.5 °C
  • Highest 2 December, 2025

    18.3 °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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