Gunnamatta Beach Weather Forecast

    • 11
    • 19

    Partly cloudy

    • 12
    • 20

    Shower

    • 11
    • 18

    Shower

    • 10
    • 18

    Partly cloudy

    • 11
    • 18

    Shower

    • 10
    • 17

    Shower

    • 9
    • 16

    Shower

Today 25 May Mornington Peninsula

Partly cloudy. Slight chance of a shower. The chance of a thunderstorm in the afternoon. Light winds becoming southeasterly 15 to 25 km/h in the evening.

Central Victoria Coastal Waters

Cape Otway to Wilsons Promontory
Wind
East to southeasterly below 10 knots increasing to 10 to 15 knots in the late afternoon.
Seas
Below 1 metre.
1st Swell
Southwesterly around 1 metre, increasing to 1 to 2 metres in the far west.
Weather
Partly cloudy.
Weather Situation
A low pressure system centred west of Kangaroo Island is expected to move slowly inland across southern SA during today and early Tuesday then over NSW later Tuesday and extend a trough over Victoria. The low and trough will move slowly eastwards on Wednesday and Thursday to be over the western Tasman Sea on Friday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Gunnamatta Beach Temperature Statistics View More

May Temperature

Cerberus (28km)

  • Lowest 22 May, 2026

    3.3 °C

  • Average May

    13.4 °C

  • Highest 1 May, 2026

    27.8 °C

Climate (2021–Present)

Cerberus (28km)

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  • Average Low 2021–2026

    10.2 °C

  • Average 2021–2026

    14.5 °C

  • Average High 2021–2026

    19.6 °C
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