Williamson's Beach Weather Forecast
- 9
- 16
Partly cloudy
- 5
- 17
Sunny
- 5
- 18
Mostly sunny
- 8
- 18
Shower or two
- 9
- 17
Showers
- 8
- 17
Shower or two
- 9
- 17
Shower or two
Today 21 May Wonthaggi
Cloudy. Light winds.
Central Victoria Coastal Waters
Cape Otway to Wilsons Promontory- Wind
- West to southwesterly about 10 knots.
- Seas
- Below 1 metre.
- 1st Swell
- Southwesterly 1.5 metres, increasing to 1.5 to 2.5 metres in the west.
- Weather
- Cloudy.
- Weather Situation
- A high near the South Australian coast extends a ridge across the north of the State. The ridge will extend across the remainder of Victoria tonight then persist for for the rest of the week. The high centre will move southeast on Saturday as a weak cold front approaches from the west, crossing Bass Strait on Sunday.
Williamson's Beach Temperature Statistics View More
May Temperature
Rhyll (24km)
Lowest 7 May, 2026
8.1 °CAverage May
14.8 °CHighest 1 May, 2026
25.2 °C
Climate (2021–Present)
Rhyll (24km)
Average Low 2021–2026
12.1 °CAverage 2021–2026
15.1 °CAverage High 2021–2026
19.4 °C