Williamstown Beach Weather Forecast

    • 20
    • 30

    Cloudy

    • 13
    • 19

    Partly cloudy

    • 13
    • 23

    Mostly sunny

    • 13
    • 29

    Mostly sunny

    • 18
    • 32

    Possible shower or storm

    • 16
    • 22

    Possible shower

    • 15
    • 22

    Partly cloudy

Today 30 Dec Melbourne

Cloudy. Slight chance of a shower. Winds southerly 25 to 35 km/h decreasing to 15 to 25 km/h in the evening.

Port Phillip Local Waters

Wind
Southwesterly 20 to 25 knots, reaching up to 30 knots in the evening. Winds tending southerly 15 to 20 knots in the evening.
Seas
1 to 1.5 metres.
Weather
Cloudy.
Weather Situation
A trough over eastern waters will linger into Wednesday morning before a ridge of high pressure develops across all coastal waters by the evening. This ridge will persist until Friday when a broad area of low pressure develops across western and central coasts, sweeping across to eastern coasts on Saturday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Williamstown Beach Temperature Statistics View More

December Temperature

Laverton RAAF Base (11km)

  • Lowest 7 December, 2025

    6.6 °C

  • Average December

    17.3 °C

  • Highest 18 December, 2025

    39.3 °C

Climate (2020–Present)

Laverton RAAF Base (11km)

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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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