Mount Martha South Beach Weather Forecast

    • 11
    • 25

    Sunny

    • 13
    • 23

    Cloudy

    • 13
    • 27

    Cloudy

    • 15
    • 23

    Shower or two

    • 14
    • 25

    Partly cloudy

    • 14
    • 27

    Partly cloudy

    • 13
    • 27

    Mostly sunny

Today 12 Jan Mornington Peninsula

Sunny. Winds southeasterly 15 to 25 km/h turning southerly 25 to 35 km/h in the middle of the day.

Port Phillip Local Waters

Wind
Southeasterly 10 to 15 knots becoming variable about 10 knots in the middle of the day then becoming southerly 15 to 20 knots in the early afternoon.
Seas
Around 1 metre, increasing to 1 to 1.5 metres by early evening.
Weather
Sunny.
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Mount Martha South Beach Temperature Statistics View More

January Temperature

Cerberus (18km)

  • Lowest 2 January, 2026

    8.5 °C

  • Average January

    18.9 °C

  • Highest 9 January, 2026

    42.3 °C

Climate (2021–Present)

Cerberus (18km)

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  • Average Low 2021–2026

    10.1 °C

  • Average 2021–2026

    14.5 °C

  • Average High 2021–2026

    19.5 °C
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