Williamstown Beach Weather Forecast

    • 7
    • 23

    Clear

    • 13
    • 25

    Mostly sunny

    • 14
    • 27

    Windy. Mostly sunny

    • 11
    • 15

    Morning shower or two

    • 7
    • 17

    Sunny

    • 7
    • 23

    Sunny

    • 12
    • 25

    Mostly sunny

Today 18 Sep Melbourne

Clear. Winds northerly 15 to 25 km/h.

Port Phillip Local Waters

Wind
Northwesterly 15 to 20 knots.
Seas
Below 1 metre.
Weather
Mostly clear.
Weather Situation
A high pressure system over NSW will persist into Saturday as a cold front crosses waters south of the Bight. The front is forecast to enter western Victoria on Sunday afternoon, reaching central districts during the evening before crossing eastern Victoria on Sunday night. A high pressure system south of the Bight will move quickly east on Monday, moving over western Bass Strait by Monday night as it extends a ridge over southern Victoria. The high will then move over the Tasman Sea on Tuesday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Williamstown Beach Temperature Statistics View More

September Temperature

Laverton RAAF Base (11km)

  • Lowest 8 September, 2026

    3.4 °C

  • Average September

    13 °C

  • Highest 13 September, 2026

    24.9 °C

Climate (2021–2026)

Laverton RAAF Base (11km)

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

  • Average Low 2021–2026

    10.6 °C

  • Average 2021–2026

    15.2 °C

  • Average High 2021–2026

    20.6 °C
Get WillyWeather+ to remove ads