Williamstown Marina Weather Forecast
- 14
- 22
Partly cloudy
- 14
- 23
Showers
- 11
- 19
Partly cloudy
- 13
- 27
Partly cloudy
- 16
- 22
Possible morning shower
- 12
- 21
Partly cloudy
- 12
- 21
Mostly sunny
Today 5 Dec Melbourne
Partly cloudy. The chance of a thunderstorm in the afternoon and early evening. Winds southeast to southwesterly 15 to 20 km/h tending southwesterly in the late evening.
Port Phillip Local Waters
- Wind
- Variable below 10 knots becoming southerly 10 to 15 knots in the early afternoon.
- Seas
- Below 1 metre.
- Weather
- Partly cloudy. The chance of a thunderstorm in the afternoon and early evening.
- Weather Situation
- A trough over will linger over the northeast today, before a cold front crosses on Saturday. A ridge of high pressure is then forecast to build over the state during Sunday, lingering on Monday.
Williamstown Marina Temperature Statistics View More
December Temperature
Laverton RAAF Base (13km)
Lowest 2 December, 2025
8.5 °CAverage December
17.5 °CHighest 3 December, 2025
30.3 °C
Climate (2020–Present)
Laverton RAAF Base (13km)
Average Low 2020–2025
10.5 °CAverage 2020–2025
15 °CAverage High 2020–2025
20.4 °C