Williamstown Weather Forecast

    • 11
    • 21

    Clear

    • 11
    • 28

    Sunny

    • 15
    • 33

    Sunny

    • 20
    • 32

    Becoming cloudy

    • 14
    • 21

    Partly cloudy

    • 14
    • 26

    Partly cloudy

    • 14
    • 28

    Partly cloudy

Today 27 Dec Melbourne

Clear. Light winds.

Port Phillip Local Waters

Wind
Southerly 15 to 20 knots, becoming southeasterly 10 to 15 knots in the late evening.
Seas
Below 1 metre.
Weather
Clear.
Weather Situation
A high pressure system south of Tasmania will move into the Tasman Sea on Sunday and Monday. A trough will slowly cross Victoria from the west during Tuesday, and linger about the northeast on Wednesday as a high pressure system centred south of the Bight extends a ridge over Tasmania.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Williamstown Temperature Statistics View More

December Temperature

Laverton RAAF Base (12km)

  • Lowest 7 December, 2025

    6.6 °C

  • Average December

    17.2 °C

  • Highest 18 December, 2025

    39.3 °C

Climate (2020–Present)

Laverton RAAF Base (12km)

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  • Average Low 2020–2025

    10.5 °C

  • Average 2020–2025

    15 °C

  • Average High 2020–2025

    20.4 °C
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