Mount Martha South Beach Weather Forecast

    • 7
    • 13

    Showers

    • 5
    • 14

    Sunny

    • 5
    • 14

    Shower or two. Becoming windy

    • 6
    • 14

    Shower or two

    • 3
    • 15

    Mostly sunny

    • 7
    • 16

    Shower or two

    • 7
    • 16

    Shower or two

Today 17 Jul Mornington Peninsula

Cloudy. Very high chance of showers, becoming less likely late this afternoon and evening. Winds north to northwesterly 25 to 35 km/h tending west to northwesterly 20 to 30 km/h during the morning.

Port Phillip Local Waters

Wind
North to northwesterly 15 to 20 knots turning westerly 10 to 15 knots in the early afternoon.
Seas
1 to 1.5 metres, decreasing to 1 metre around midday.
Weather
Partly cloudy. 80% chance of showers.
Weather Situation
Westerly flow persists over Victoria, with a cold front crossing the State during the morning. A high pressure system will then extend a ridge over Victoria and Bass Strait on Friday, before a stronger cold front crosses the State on Saturday. Westerly flow returns on Sunday with a high centred over northern Victoria.
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Mount Martha South Beach Temperature Statistics View More

July Temperature

Cerberus (18km)

  • Lowest 5 July, 2025

    1.6 °C

  • Average July

    10.2 °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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