Mount Martha South Beach Weather Forecast

    • 5
    • 13

    Possible shower

    • 5
    • 12

    Showers. Windy

    • 5
    • 15

    Showers

    • 6
    • 16

    Partly cloudy

    • 8
    • 16

    Showers developing

    • 5
    • 12

    Shower or two

    • 3
    • 13

    Shower or two

Today 9 Jul Mornington Peninsula

Cloudy. Medium chance of showers later this evening. Winds northerly 25 to 40 km/h.

Port Phillip Local Waters

Wind
Northerly 15 to 25 knots, reaching up to 30 knots in the late evening.
Seas
Around 1 metre, increasing to 1.5 metres in the south.
Weather
Cloudy.
Weather Situation
A cold front just west of Victoria will enter western Bass Strait during the early hours of Thursday before reach Port Phillip and Western Port around 0700hrs. Another front is forecast to cross Bass Strait on Friday before a high pressure system crosses NSW and extends a ridge over Bass Strait on Saturday. Northwesterly winds will freshen on Sunday ahead of a cold front that is forecast to enter western Bass Strait during the evening.
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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 5 July, 2025

    1.6 °C

  • Average July

    9.9 °C

  • Highest 5 July, 2025

    17.4 °C

Climate (2020–Present)

Cerberus (18km)

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  • Average Low 2020–2025

    10.2 °C

  • Average 2020–2025

    14.5 °C

  • Average High 2020–2025

    19.5 °C
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