Williamson's Beach Weather Forecast

    • 14
    • 20

    Showers increasing

    • 10
    • 14

    Rain

    • 7
    • 15

    Partly cloudy

    • 6
    • 17

    Sunny

    • 7
    • 22

    Partly cloudy

    • 13
    • 21

    Shower or two

    • 12
    • 21

    Showers increasing

Today 25 Sep Wonthaggi

Cloudy. High chance of showers, most likely in the late afternoon and evening. The chance of a thunderstorm in the afternoon and evening. Light winds.

Central Victoria Coastal Waters

Cape Otway to Wilsons Promontory
Wind
Northerly 10 to 15 knots shifting southwesterly in the late morning and early afternoon.
Seas
Below 1 metre.
1st Swell
Southwesterly around 1 metre, increasing to 1 to 1.5 metres in the west.
Weather
Cloudy. 80% chance of showers. The chance of a thunderstorm inshore in the afternoon and evening.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Williamson's Beach Temperature Statistics View More

September Temperature

Wonthaggi (6km)

  • Lowest 22 September, 2026

    3.1 °C

  • Average September

    12.2 °C

  • Highest 20 September, 2026

    27.1 °C

Climate (2021–2026)

Wonthaggi (6km)

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  • Average Low 2021–2026

    10.2 °C

  • Average 2021–2026

    12.9 °C

  • Average High 2021–2026

    19.9 °C
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