Gunnamatta Beach Weather Forecast

    • 10
    • 16

    Shower

    • 8
    • 15

    Shower

    • 9
    • 15

    Shower

    • 8
    • 16

    Cloudy

    • 10
    • 17

    Shower

    • 9
    • 14

    Shower

    • 8
    • 15

    Shower

Today 20 Aug Mornington Peninsula

Partly cloudy. High chance of showers, most likely in the late afternoon and evening. Winds northwesterly 15 to 25 km/h becoming light in the early afternoon then becoming northwesterly 15 to 20 km/h in the evening.

Central Victoria Coastal Waters

Cape Otway to Wilsons Promontory
Wind
Northwesterly 15 to 20 knots.
Seas
1 to 2 metres, decreasing to 1 to 1.5 metres during the afternoon.
1st Swell
Westerly 1 to 1.5 metres, increasing to 1.5 to 2.5 metres in the west.
Weather
Partly cloudy. 90% chance of showers.
Weather Situation
A large high pressure system centred over the Tasman Sea is responsible for northerly winds across Victoria. A trough will move across the state today. A ridge of high pressure will become established over the north on Friday and over the weekend and a couple of weak troughs will pass to the south in a broad westerly flow.
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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

    10.8 °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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