Williamstown Weather Forecast

    • 16
    • 23

    Shower or two

    • 14
    • 20

    Partly cloudy

    • 12
    • 27

    Sunny

    • 16
    • 38

    Sunny

    • 20
    • 28

    Partly cloudy

    • 16
    • 29

    Cloud clearing

    • 17
    • 35

    Mostly sunny

Today 21 Jan Melbourne

Partly cloudy. Medium chance of showers, most likely this evening. Winds west to southwesterly 15 to 20 km/h turning southerly 25 to 35 km/h during the morning and early afternoon.

Port Phillip Local Waters

Wind
South to southeasterly 10 to 15 knots tending south to southwesterly 20 to 25 knots in the late morning and early afternoon.
Seas
Below 1 metre, increasing to 1 to 1.5 metres during the afternoon.
Weather
Partly cloudy.
Weather Situation
A high pressure system moves into waters south of the Bight and extends a ridge over western Victoria tonight and more broadly over the state on Thursday. The high then moves into the Tasman Sea on Friday, followed by a trough of low pressure over the weekend.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Williamstown Temperature Statistics View More

January Temperature

Laverton RAAF Base (12km)

  • Lowest 6 January, 2026

    11.9 °C

  • Average January

    20.4 °C

  • Highest 9 January, 2026

    44.4 °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

    20.4 °C
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