Williamstown Beach Weather Forecast

    • 10
    • 14

    Shower or two

    • 10
    • 15

    Cloudy

    • 7
    • 17

    Cloud clearing

    • 8
    • 21

    Mostly sunny

    • 13
    • 23

    Partly cloudy

    • 15
    • 23

    Shower or two

    • 11
    • 16

    Showers

Today 9 Sep Melbourne

Cloudy. High chance of showers about the Dandenongs, medium chance elsewhere. Winds southwesterly 15 to 25 km/h turning southerly 25 to 35 km/h during the morning then tending south to southwesterly 15 to 20 km/h in the evening.

Port Phillip Local Waters

Wind
Southwesterly 20 to 25 knots, reaching up to 30 knots in the south early in the morning. Winds turning southerly 15 to 25 knots during the morning.
Seas
Around 1 metre, increasing to 1 to 1.5 metres during the morning.
Weather
Cloudy.
Weather Situation
A high pressure system south of the Bight extends a ridge over Victoria. A weak cold front will clip southern Victoria early this morning, before the high pressure system drifts eastward over Victoria later in the week, moving into the Tasman Sea by the weekend.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Williamstown Beach Temperature Statistics View More

September Temperature

Laverton RAAF Base (11km)

  • Lowest 8 September, 2026

    3.4 °C

  • Average September

    13.1 °C

  • Highest 1 September, 2026

    22.1 °C

Climate (2021–2026)

Laverton RAAF Base (11km)

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  • Average Low 2021–2026

    10.6 °C

  • Average 2021–2026

    15.2 °C

  • Average High 2021–2026

    20.6 °C
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