Gunnamatta Beach Weather Forecast

    • 15
    • 23

    Partly cloudy

    • 13
    • 21

    Partly cloudy

    • 12
    • 25

    Sunny

    • 14
    • 37

    Sunny

    • 18
    • 25

    Partly cloudy

    • 14
    • 29

    Partly cloudy

    • 16
    • 32

    Partly cloudy

Today 21 Jan Mornington Peninsula

Partly cloudy. Slight chance of a shower. Winds southerly 20 to 30 km/h tending southwesterly 25 to 40 km/h in the late afternoon.

Central Victoria Coastal Waters

Cape Otway to Wilsons Promontory
Wind
Southwesterly 20 to 30 knots.
Seas
1.5 metres, increasing to 1.5 to 2 metres in the far west.
1st Swell
Southwesterly 1 to 1.5 metres, increasing to 1.5 to 2 metres in the far west.
Weather
Partly cloudy.
Weather Situation
A high pressure system over waters south of the Bight extends a ridge over western Victoria, extending more broadly over the state on Thursday, before progressing eastwards to be over the Tasman Sea by Friday. A trough of low pressure enters from the west late Saturday, forecast to move across the state into early Sunday. A new high pressure centre is expected to lie to the southwest of the state on Sunday, directing a south to southeasterly airstream over Victoria.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Gunnamatta Beach Temperature Statistics View More

January Temperature

Cerberus (28km)

  • Lowest 2 January, 2026

    8.5 °C

  • Average January

    19.1 °C

  • Highest 9 January, 2026

    42.3 °C

Climate (2021–Present)

Cerberus (28km)

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  • Average Low 2021–2026

    10.1 °C

  • Average 2021–2026

    14.5 °C

  • Average High 2021–2026

    19.5 °C
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