Mount Martha South Beach Weather Forecast

    • 16
    • 29

    Mostly sunny

    • 15
    • 25

    Partly cloudy

    • 13
    • 21

    Mostly sunny

    • 12
    • 28

    Sunny

    • 14
    • 37

    Sunny

    • 19
    • 30

    Partly cloudy

    • 15
    • 31

    Mostly sunny

Today 20 Jan Mornington Peninsula

Mostly sunny. The chance of a thunderstorm during this afternoon and early evening. Winds east to southeasterly 25 to 35 km/h.

Port Phillip Local Waters

Wind
Southeasterly 10 to 15 knots tending south to southwesterly 15 to 20 knots in the middle of the day then tending southeasterly in the evening.
Seas
Around 1 metre.
Weather
Partly cloudy. The chance of a thunderstorm during this afternoon and early evening.
Weather Situation
A high pressure system centred over the southern Tasman Sea will move away to the southeast today. A low pressure trough over western districts will move slowly northeastwards mid week. Another high develops over waters south of the Bight and extends a ridge over Victoria later in the week.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Mount Martha South Beach Temperature Statistics View More

January Temperature

Cerberus (18km)

  • Lowest 2 January, 2026

    8.5 °C

  • Average January

    19 °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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