Onion Bay Weather Forecast
- 12
- 21
Shower
- 10
- 17
Shower
- 12
- 21
Cloudy
- 12
- 27
Sunny
- 18
- 37
Sunny
- 14
- 21
Shower
- 13
- 23
Shower
Today 22 Dec South West
Partly cloudy. The chance of smoke haze near the Grampians during the morning and afternoon. High chance of showers, most likely during this afternoon and early evening. Winds southerly 15 to 20 km/h turning southwesterly 15 to 25 km/h during the morning then increasing to 25 to 35 km/h in the early afternoon. Daytime maximum temperatures in the low to mid 20s.
Central Victoria Coastal Waters
Cape Otway to Wilsons Promontory- Wind
- West to southwesterly 15 to 25 knots, reaching up to 30 knots in the evening.
- Seas
- 1 to 1.5 metres, increasing to 1.5 to 2 metres in the west during the afternoon.
- 1st Swell
- Southwesterly 1.5 to 2 metres.
- Weather
- Cloudy. 70% chance of showers.
- Weather Situation
- A high pressure system over the Bight extends a ridge east over Bass Strait. A cold front is forecast to cross western coastal waters late this afternoon, central coastal waters late evening and clear Bass Strait by early Monday morning. The high is then forecast to slowly move east over southern Victoria and Bass Strait by late Tuesday and into the Tasman Sea by late Wednesday. Next front then approaches from the west to cross Bass Strait late Thursday and early Friday.
Onion Bay Temperature Statistics View More
December Temperature
Cape Otway (29km)
Lowest 4 December, 2024
10.2 °CAverage December
17.2 °CHighest 16 December, 2024
40.1 °C
Climate (2019–Present)
Cape Otway (29km)
Average Low 2019–2024
11.6 °CAverage 2019–2024
14.1 °CAverage High 2019–2024
17.2 °C