Gunnamatta Beach Weather Forecast

    • 5
    • 16

    Partly cloudy

    • 5
    • 18

    Partly cloudy

    • 9
    • 24

    Partly cloudy

    • 15
    • 22

    Shower

    • 11
    • 17

    Shower

    • 10
    • 19

    Partly cloudy

    • 10
    • 24

    Partly cloudy

Today 22 Sep Mornington Peninsula

Mostly sunny. The chance of frost early this morning. Light winds becoming southeasterly 15 to 25 km/h in the middle of the day then becoming light in the late evening.

Central Victoria Coastal Waters

Cape Otway to Wilsons Promontory
Wind
Variable about 10 knots becoming southeasterly 10 to 15 knots in the late afternoon then tending easterly in the evening.
Seas
Below 1 metre.
1st Swell
Southwesterly 2 to 2.5 metres, increasing to 2.5 to 4 metres in the west.
Weather
Cloud clearing.
Weather Situation
A high pressure system in the Bight moves into the Tasman Sea during the week, directing a light to moderate east to northeasterly airstream over Victoria during the second half of the week.
Graph Plots Open in Graphs

  • 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 20 September, 2026

    26.2 °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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