Gunnamatta Beach Weather Forecast

    • 6
    • 16

    Partly cloudy

    • 7
    • 18

    Partly cloudy

    • 11
    • 17

    Shower

    • 11
    • 16

    Shower

    • 8
    • 15

    Shower

    • 9
    • 15

    Shower

    • 7
    • 15

    Partly cloudy

Today 17 Aug Mornington Peninsula

Patchy morning fog. Sunny afternoon. Light winds becoming easterly 15 to 20 km/h in the late evening.

Central Victoria Coastal Waters

Cape Otway to Wilsons Promontory
Wind
Easterly 15 to 20 knots.
Seas
Around 1 metre, increasing to 1 to 1.5 metres during the afternoon.
1st Swell
Southwesterly 1.5 metres, increasing to 1.5 to 2.5 metres in the west.
Weather
Sunny.
Weather Situation
A high pressure system centred over Tasmania will move over the Tasman Sea during today. An associated ridge south of Victoria will also move eastwards over the Tasman Sea. A low pressure trough will move across SA on Tuesday and early Wednesday then will slip to the south of Victoria during Wednesday then a weak high pressure ridge will move over the state on Thursday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Gunnamatta Beach Temperature Statistics View More

August Temperature

Cerberus (28km)

  • Lowest 2 August, 2026

    2.3 °C

  • Average August

    10.7 °C

  • Highest 2 August, 2026

    17.4 °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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