Williamstown Beach Weather Forecast

    • 13
    • 31

    Partly cloudy

    • 20
    • 26

    Shower or two. Possible storm

    • 13
    • 21

    Becoming windy. Cloudy

    • 11
    • 17

    Cloudy

    • 11
    • 21

    Partly cloudy

    • 12
    • 34

    Sunny

    • 19
    • 35

    Sunny

Today 12 Dec Melbourne

Partly cloudy. The chance of a thunderstorm in the northwest suburbs. Winds north to northeasterly 15 to 25 km/h.

Port Phillip Local Waters

Wind
Easterly 10 to 15 knots turning northeasterly in the late evening.
Seas
Below 1 metre.
Weather
Partly cloudy.
Weather Situation
A high pressure system lies over the Tasman Sea and extends a broad ridge over eastern Bass Strait. A low pressure trough extends across the SA border into western Victoria and Bass Strait. The trough is expected to slowly move east over Victoria and Bass Strait during Saturday, entering from the west in the early morning and moving into eastern Coastal waters by the evening. The next cold front will cross Bass Strait during Sunday with a new high pressure ridge developing in its wake on Monday.
Graph Plots Open in Graphs

  • 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

    16.6 °C

  • Highest 4 December, 2025

    34.9 °C

Climate (2020–Present)

Laverton RAAF Base (11km)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    10.5 °C

  • Average 2020–2025

    15 °C

  • Average High 2020–2025

    20.4 °C
Get WillyWeather+ to remove ads