Gunnamatta Beach Weather Forecast

    • 9
    • 15

    Partly cloudy

    • 6
    • 15

    Partly cloudy

    • 8
    • 14

    Shower

    • 9
    • 15

    Cloudy

    • 8
    • 15

    Partly cloudy

    • 8
    • 18

    Sunny

    • 12
    • 21

    Shower

Today 7 Sep Mornington Peninsula

Partly cloudy. Slight chance of a shower in the late morning. Winds southerly 25 to 35 km/h decreasing to 15 to 25 km/h in the evening then becoming light in the late evening.

Central Victoria Coastal Waters

Cape Otway to Wilsons Promontory
Wind
South to southwesterly 15 to 25 knots, reaching up to 30 knots in the east in the late morning and early afternoon. Winds decreasing to 10 to 15 knots in the late evening.
Seas
1.5 to 2.5 metres, decreasing to 1 to 1.5 metres by early evening.
1st Swell
Southwesterly 1.5 to 2 metres, increasing to 2 to 3 metres in the far west.
Weather
Partly cloudy.
Weather Situation
A high pressure ridge lies over northern Victoria, while a weak cold front is expected to cross southern Victoria through today. The ridge will extend across the state Tuesday, before another weak cold front clips southern Victoria later that day. A high pressure system will approach from the west from Wednesday.
Graph Plots Open in Graphs

  • 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 5 September, 2026

    17.6 °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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