Gunnamatta Beach Weather Forecast

    • 10
    • 16

    Partly cloudy

    • 8
    • 17

    Shower

    • 12
    • 18

    Shower

    • 10
    • 16

    Shower

    • 9
    • 15

    Shower

    • 8
    • 15

    Shower

    • 9
    • 14

    Cloudy

Today 3 Sep Mornington Peninsula

Partly cloudy. High chance of showers, becoming less likely in the afternoon. Winds westerly 25 to 35 km/h decreasing to 15 to 25 km/h in the evening.

Central Victoria Coastal Waters

Cape Otway to Wilsons Promontory
Wind
Westerly 20 to 30 knots, reaching up to 35 knots in the far west in the early afternoon.
Seas
2 to 3 metres.
1st Swell
West to southwesterly 3 to 5 metres.
Weather
Partly cloudy. 60% chance of showers.
Weather Situation
A cold front embedded in a westerly flow will clip the south of Victoria today, with a high pressure system to build to the north of the state in the evening. This high is expected to move over the Tasman Sea on Friday morning, with a strong cold front to approach the west of Victoria on Friday evening and cross the state on Saturday.
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

    13.9 °C

  • Highest

    –

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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