Onion Bay Weather Forecast
- 12
- 17
Shower
- 13
- 20
Cloudy
- 12
- 23
Partly cloudy
- 14
- 26
Sunny
- 17
- 23
Shower
- 13
- 22
Partly cloudy
- 12
- 18
Cloudy
Today 28 Mar South West
Cloudy. Medium chance of showers near the Otways, near zero chance elsewhere. Winds southerly 15 to 25 km/h.
Central Victoria Coastal Waters
Cape Otway to Wilsons Promontory- Wind
- South to southwesterly 15 to 20 knots, reaching up to 25 knots in the far east in the evening.
- Seas
- 1 to 1.5 metres.
- 1st Swell
- Southwesterly 1.5 metres, increasing to 1.5 to 2.5 metres in the west.
- Weather
- Partly cloudy.
- Weather Situation
- A southerly airstream persists over Victorian coastal waters as a low pressure system moves east in the Tasman Sea. A high pressure system south of the Bight approaches western Bass Strait today before moving over Victoria later on Sunday. Winds will tend northerly on Monday and continue on Tuesday as the high moves into the Tasman Sea. A cold front on Wednesday will see winds shift west to southwesterly across coastal waters.
Onion Bay Temperature Statistics View More
March Temperature
Cape Otway (29km)
Lowest 27 March, 2026
10.5 °CAverage March
16.5 °CHighest 10 March, 2026
25.1 °C
Climate (2021–Present)
Cape Otway (29km)
Average Low 2021–2026
11.7 °CAverage 2021–2026
14.2 °CAverage High 2021–2026
17.4 °C