Gunnamatta Beach Weather Forecast

    • 7
    • 14

    Shower

    • 6
    • 15

    Shower

    • 8
    • 15

    Partly cloudy

    • 8
    • 16

    Shower

    • 9
    • 15

    Shower

    • 7
    • 14

    Shower

    • 7
    • 15

    Shower

Today 5 Aug Mornington Peninsula

Partly cloudy. High chance of showers, becoming less likely in the late afternoon and evening. Winds southwesterly 20 to 30 km/h tending westerly 15 to 20 km/h in the evening then becoming light in the late evening.

Central Victoria Coastal Waters

Cape Otway to Wilsons Promontory
Wind
Southwesterly 10 to 15 knots, reaching up to 20 knots in the west in the late morning and afternoon.
Seas
1 to 1.5 metres.
1st Swell
Southwesterly 1 to 1.5 metres, increasing to 1.5 to 2 metres in the far west.
Weather
Partly cloudy. 60% chance of showers.
Weather Situation
A low pressure system and associated trough centred over the Tasman Sea will move away from the state as a high pressure system to the north extends a ridge over the west. The ridge will slowly move eastwards across the state through to the end of the week. A weak trough will clip parts of the south on Thursday. The high pressure system will move out over the Tasman Sea on Saturday ahead of a vigorous cold front expected to cross the state on Sunday.
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

    9.5 °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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