Portsea Surf Beach Weather Forecast

    • 9
    • 22

    Cloudy

    • 15
    • 19

    Shower

    • 11
    • 15

    Rain

    • 9
    • 14

    Shower

    • 9
    • 16

    Partly cloudy

    • 9
    • 19

    Partly cloudy

    • 14
    • 20

    Shower

Today 24 Sep Mornington Peninsula

Partly cloudy. Winds northerly 20 to 30 km/h becoming light in the late afternoon.

Port Phillip Local Waters

Wind
Northerly 15 to 20 knots decreasing to below 10 knots in the late afternoon.
Seas
Below 1 metre.
Weather
Partly cloudy.
Weather Situation
A high pressure system is expected to sit over the Tasman Sea for the rest of the week, directing a warm northerly airstream over Victoria. A trough will cross southern Victoria on Friday. Another high pressure system south of the Bight will slowly move east during the weekend.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Portsea Surf Beach Temperature Statistics View More

September Temperature

Avalon Airport (39km)

  • Lowest 18 September, 2026

    0.7 °C

  • Average September

    12.5 °C

  • Highest 20 September, 2026

    30.4 °C

Climate (2021–2026)

Avalon Airport (39km)

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  • Average Low 2021–2026

    9.8 °C

  • Average 2021–2026

    14.6 °C

  • Average High 2021–2026

    20.6 °C
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