Gunnamatta Beach Weather Forecast

    • 10
    • 16

    Shower

    • 8
    • 16

    Cloudy

    • 7
    • 17

    Partly cloudy

    • 10
    • 23

    Partly cloudy

    • 15
    • 22

    Shower

    • 13
    • 21

    Shower

    • 11
    • 18

    Shower

Today 26 Sep Mornington Peninsula

Cloudy. Very high chance of showers, becoming less likely in the late afternoon and evening. Winds southerly 20 to 30 km/h.

Central Victoria Coastal Waters

Cape Otway to Wilsons Promontory
Wind
Southerly 15 to 20 knots, reaching up to 25 knots offshore during the afternoon and evening.
Seas
Around 1 metre, increasing to 1 to 2 metres around midday.
1st Swell
Southwesterly 1 to 1.5 metres, increasing to 1.5 to 2.5 metres in the west.
Weather
Cloudy. 50% chance of showers.
Weather Situation
A low pressure trough will move across Victoria 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

    13.4 °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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