Gunnamatta Beach Weather Forecast

    • 9
    • 15

    Cloudy

    • 5
    • 16

    Partly cloudy

    • 6
    • 18

    Sunny

    • 10
    • 23

    Partly cloudy

    • 14
    • 24

    Shower

    • 11
    • 17

    Shower

    • 9
    • 20

    Partly cloudy

Today 21 Sep Mornington Peninsula

Slight chance of a shower, most likely in the early morning. Mostly sunny afternoon. Winds westerly 25 to 35 km/h turning south to southwesterly 15 to 25 km/h during the morning and early afternoon.

Central Victoria Coastal Waters

Cape Otway to Wilsons Promontory
Wind
Southwesterly 15 to 25 knots, reaching up to 30 knots during the morning. Winds decreasing to 10 to 15 knots in the evening.
Seas
2 to 3 metres, decreasing to 1 to 1.5 metres around midday, then decreasing to 1 metre later in the evening.
1st Swell
Southwesterly 2 to 3 metres, increasing to 3 to 4 metres in the far west during the morning.
Weather
Partly cloudy.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Gunnamatta Beach Temperature Statistics View More

September Temperature

Cerberus (28km)

  • Lowest 18 September, 2026

    2.4 °C

  • Average September

    13.3 °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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