Mount Martha South Beach Weather Forecast

    • 8
    • 16

    Showers increasing

    • 8
    • 15

    Showers

    • 6
    • 15

    Becoming cloudy

    • 7
    • 15

    Cloudy

    • 5
    • 13

    Partly cloudy

    • 4
    • 14

    Partly cloudy

    • 5
    • 16

    Mostly sunny

Today 13 Jul Mornington Peninsula

Partly cloudy. Very high chance of showers, most likely during this afternoon and evening. Winds northwesterly 25 to 40 km/h.

Port Phillip Local Waters

Wind
Northwesterly 15 to 20 knots, reaching up to 25 knots in the south in the late morning.
Seas
1 to 1.5 metres.
Weather
Partly cloudy. 90% chance of showers.
Weather Situation
A cool westerly airstream extends over Victoria with embedded cold fronts and troughs to cross southern Victoria at times until Tuesday. The westerly airstream weakens on Wednesday as a high pressure system over the Bight extends a ridge over Victoria, before the high centre moves over the state during Thursday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Mount Martha South Beach Temperature Statistics View More

July Temperature

Cerberus (18km)

  • Lowest 7 July, 2026

    1.5 °C

  • Average July

    9.4 °C

  • Highest 1 July, 2026

    17.9 °C

Climate (2021–2026)

Cerberus (18km)

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  • Average Low 2021–2026

    10.2 °C

  • Average 2021–2026

    14.6 °C

  • Average High 2021–2026

    19.7 °C
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