Williamstown Weather Forecast

    • 17
    • 25

    Becoming windy. Partly cloudy

    • 17
    • 27

    Partly cloudy

    • 16
    • 29

    Sunny

    • 19
    • 29

    Partly cloudy

    • 19
    • 29

    Mostly sunny

    • 18
    • 28

    Cloud clearing

    • 18
    • 31

    Mostly sunny

Today 16 Jan Melbourne

Partly cloudy. Medium chance of showers during the morning and afternoon. Winds southeasterly 30 to 45 km/h.

Port Phillip Local Waters

Wind
Southeasterly 20 to 30 knots.
Seas
1 to 1.5 metres, increasing to 1 to 2 metres in the north.
Weather
Partly cloudy.
Weather Situation
A low pressure trough lies over eastern districts with an associated a low pressure system to the north of the state over southern NSW. This low remains near stationary until it moves northward on the weekend, reducing its influence over Victoria. A high pressure system will also drift south of Tasmania over the coming days and will extend a ridge across the state on the weekend once the low shifts northwards. Another trough of low pressure will move across the state early next week.
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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 6 January, 2026

    11.9 °C
  • Average January

    20.2 °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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