Gunnamatta Beach Weather Forecast

    • 8
    • 15

    Shower

    • 9
    • 15

    Shower

    • 7
    • 16

    Cloudy

    • 9
    • 17

    Shower

    • 9
    • 15

    Shower

    • 9
    • 15

    Cloudy

    • 8
    • 16

    Cloudy

Today 21 Aug Mornington Peninsula

Cloudy. Medium chance of showers, most likely in the late afternoon and evening. Winds westerly 20 to 30 km/h turning northwesterly in the middle of the day.

Central Victoria Coastal Waters

Cape Otway to Wilsons Promontory
Wind
Westerly 20 to 25 knots, reaching up to 30 knots during the afternoon and evening.
Seas
1.5 to 2.5 metres.
1st Swell
Westerly 1.5 to 2 metres, increasing to 2 to 3 metres in the west.
Weather
Cloudy. 80% chance of showers.
Weather Situation
A ridge of high pressure will become established over the north from today and over the weekend and a couple of cold fronts will pass well to the south in a broad westerly flow. The ridge will weaken and move over the Tasman Sea on Monday and a low pressure system and associated trough will approach from the west.
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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

    10.9 °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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