Gunnamatta Beach Weather Forecast

    • 14
    • 21

    Shower

    • 10
    • 16

    Shower

    • 8
    • 16

    Cloudy

    • 7
    • 17

    Partly cloudy

    • 8
    • 22

    Partly cloudy

    • 14
    • 22

    Shower

    • 13
    • 22

    Shower

Today 25 Sep Mornington Peninsula

Cloudy. High chance of showers. The chance of a thunderstorm early this evening. Winds southerly 15 to 20 km/h becoming light in the evening.

Central Victoria Coastal Waters

Cape Otway to Wilsons Promontory
Wind
Southwesterly 10 to 15 knots.
Seas
Below 1 metre.
1st Swell
Southwesterly around 1 metre, increasing to 1.5 metres in the far west.
Weather
Cloudy. 50% chance of showers. The chance of a thunderstorm in the far east.
Weather Situation
A low pressure trough will move across Victoria between late Friday and early Saturday, as a band of mid-level cloud extends across the State. A cold front will clip the south of the State later Saturday, ahead of a strong high pressure system building south of the Bight. This high will extend a ridge over Tasmania and along the east coast of NSW on Sunday, before moving into the Tasman Sea late Monday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Gunnamatta Beach Temperature Statistics View More

September Temperature

Cerberus (28km)

  • Lowest 23 September, 2026

    1.8 °C

  • Average September

    12.9 °C

  • Highest 20 September, 2026

    26.2 °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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