Gunnamatta Beach Weather Forecast

    • 8
    • 15

    Cloudy

    • 7
    • 21

    Partly cloudy

    • 12
    • 22

    Sunny

    • 13
    • 23

    Shower

    • 9
    • 15

    Cloudy

    • 7
    • 15

    Partly cloudy

    • 7
    • 20

    Partly cloudy

Today 17 Sep Mornington Peninsula

Cloudy. Winds west to southwesterly 15 to 20 km/h becoming light in the evening.

Central Victoria Coastal Waters

Cape Otway to Wilsons Promontory
Wind
Southwesterly 15 to 20 knots turning westerly in the morning. Winds reaching up to 25 knots in the far east during the afternoon and evening.
Seas
1 to 1.5 metres, increasing to 1 to 2 metres during the afternoon.
1st Swell
Southwesterly 1.5 to 2.5 metres, increasing to 2 to 4 metres in the west.
Weather
Cloudy.
Weather Situation
A strong high pressure system south of the Bight drifts eastward, to be centred over western Victoria by tonight. Winds will tend warmer northwesterly on Friday and into Saturday as the high moves slowly over NSW before a cold front crosses the State on Sunday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Gunnamatta Beach Temperature Statistics View More

September Temperature

Cerberus (28km)

  • Lowest 8 September, 2026

    3.3 °C

  • Average September

    12.7 °C

  • Highest 13 September, 2026

    25.6 °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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