Williamstown Weather Forecast

    • 18
    • 28

    Partly cloudy

    • 16
    • 24

    Late shower or two

    • 15
    • 20

    Partly cloudy

    • 13
    • 27

    Sunny

    • 17
    • 38

    Sunny

    • 20
    • 30

    Partly cloudy

    • 16
    • 31

    Sunny

Today 20 Jan Melbourne

Partly cloudy. Slight chance of a shower about the nearby hills this afternoon. Near zero chance of rain elsewhere. The chance of a thunderstorm during this afternoon and early evening. Winds west to southwesterly 15 to 20 km/h becoming light in the early morning then becoming southeast to southwesterly 15 to 25 km/h in the middle of the day.

Port Phillip Local Waters

Wind
Southeasterly 10 to 15 knots tending south to southwesterly 15 to 20 knots in the middle of the day then tending southeasterly in the evening.
Seas
Around 1 metre.
Weather
Partly cloudy. The chance of a thunderstorm during this afternoon and early evening.
Weather Situation
A high pressure system centred over the southern Tasman Sea will move away to the southeast today. A low pressure trough over western districts will move slowly northeastwards mid week. Another high develops over waters south of the Bight and extends a ridge over Victoria later in the week.
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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

    20.3 °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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