Gunnamatta Beach Weather Forecast

    • 9
    • 15

    Shower

    • 10
    • 15

    Partly cloudy

    • 8
    • 15

    Partly cloudy

    • 9
    • 15

    Shower

    • 8
    • 14

    Cloudy

    • 8
    • 14

    Cloudy

    • 7
    • 17

    Partly cloudy

Today 25 Aug Mornington Peninsula

Cloudy. Medium chance of rain, becoming less likely in the late afternoon and evening. Light winds becoming southwesterly 15 to 25 km/h in the evening.

Central Victoria Coastal Waters

Cape Otway to Wilsons Promontory
Wind
Variable about 10 knots becoming southwesterly 15 to 20 knots in the early afternoon.
Seas
Below 1 metre, increasing to 1 to 1.5 metres by early evening.
1st Swell
Southwesterly 1.5 metres, increasing to 1.5 to 2.5 metres in the west.
Weather
Partly cloudy. 60% chance of showers.
Weather Situation
A low pressure system will cross quickly eastwards across the State on Tuesday and move into the Tasman Sea in the evening. A large high pressure system over South Australia will begin to extend a ridge over western Victoria on Wednesday with the high pressure centre slowly moving the north on Thursday, remaining relatively stationary on Friday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Gunnamatta Beach Temperature Statistics View More

August Temperature

Cerberus (28km)

  • Lowest 2 August, 2026

    2.3 °C

  • Average August

    11.1 °C

  • Highest 2 August, 2026

    17.4 °C

Climate (2021–2026)

Cerberus (28km)

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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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