Williamstown Weather Forecast

    • 19
    • 26

    Possible shower

    • 16
    • 20

    Shower or two. Becoming windy

    • 13
    • 22

    Mostly sunny

    • 12
    • 32

    Sunny

    • 19
    • 28

    Partly cloudy

    • 16
    • 23

    Partly cloudy

    • 15
    • 24

    Partly cloudy

Today 31 Jan Melbourne

Partly cloudy. Medium chance of showers, most likely in the evening. The chance of a thunderstorm in the afternoon and evening. Winds southerly 20 to 30 km/h.

Port Phillip Local Waters

Wind
Southerly about 10 knots increasing to 15 to 20 knots in the early afternoon.
Seas
Below 0.5 metres, increasing to around 1 metre around midday.
Weather
Partly cloudy. The chance of a thunderstorm in the late afternoon and evening.
Weather Situation
A low pressure trough lies through northeastern Victoria ahead of a strong ridge of high pressure pushing in from the west late today, with a south to southeasterly flow developing across the entire state by Sunday. The ridge lingers on Monday as the high centre moves east, out to the Tasman Sea by Tuesday. Another trough develops in the northwest by late Tuesday.
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  • Temperature Forecast Bureau of Meteorology

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Williamstown Temperature Statistics View More

January Temperature

Laverton RAAF Base (12km)

  • Lowest 23 January, 2026

    9.9 °C

  • Average January

    20.8 °C

  • Highest 27 January, 2026

    45.6 °C

Climate (2021–Present)

Laverton RAAF Base (12km)

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  • Average Low 2021–2026

    10.5 °C

  • Average 2021–2026

    15 °C

  • Average High 2021–2026

    20.5 °C
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