Gunnamatta Beach Weather Forecast

    • 8
    • 17

    Shower

    • 12
    • 18

    Storm

    • 10
    • 16

    Shower

    • 9
    • 15

    Shower

    • 8
    • 16

    Shower

    • 9
    • 14

    Cloudy

    • 9
    • 15

    Partly cloudy

Today 4 Sep Mornington Peninsula

Cloudy. Very high chance of showers, most likely later this evening. Winds northwesterly 15 to 20 km/h turning northerly 25 to 40 km/h in the evening.

Central Victoria Coastal Waters

Cape Otway to Wilsons Promontory
Wind
Northwesterly 15 to 20 knots turning northerly in the late afternoon.
Seas
1 to 1.5 metres, decreasing to 1 metre by early evening.
1st Swell
Southwesterly 2.5 to 3 metres, increasing to 4 to 5 metres in the far west.
Weather
Cloudy. 90% chance of showers.
Weather Situation
Northerly winds will strengthen tonight as a cold front approaches from the west. The front is forecast to cross Victoria on Saturday, with a vigorous westerly airstream developing as an associated low pressure system crosses Tasmania. Winds will ease on Sunday as a high pressure ridge extends over Victoria and persists into early next week.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Gunnamatta Beach Temperature Statistics View More

September Temperature

Cerberus (28km)

  • Lowest 1 September, 2026

    4.9 °C

  • Average September

    13.3 °C

  • Highest 2 September, 2026

    16 °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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