Onion Bay Weather Forecast

    • 13
    • 19

    Partly cloudy

    • 14
    • 21

    Windy

    • 15
    • 25

    Partly cloudy

    • 17
    • 24

    Partly cloudy

    • 17
    • 27

    Shower

    • 19
    • 25

    Shower

    • 17
    • 23

    Shower

Today 25 Feb South West

Mostly clear. Winds southeasterly 25 to 40 km/h.

Central Victoria Coastal Waters

Cape Otway to Wilsons Promontory
Wind
South to southeasterly 15 to 20 knots turning easterly in the evening. Winds reaching up to 25 knots in the east in the late evening.
Seas
Around 1 metre, increasing to 1 to 1.5 metres in the west.
1st Swell
Southwesterly 1.5 to 2 metres, increasing to 2.5 to 3 metres in the far west.
Weather
Mostly clear.
Weather Situation
A high pressure system southwest of Victoria extends a ridge over Bass Strait. The high will move east over the southern Tasman Sea on Thursday and persist through to Saturday as a trough deepens over western Victoria and moves west to SA. Northerly flow over Victoria continues on Sunday ahead of a change early next week.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Onion Bay Temperature Statistics View More

February Temperature

Cape Otway (29km)

  • Lowest 6 February, 2026

    9.3 °C

  • Average February

    17.3 °C

  • Highest 17 February, 2026

    30.7 °C

Climate (2021–Present)

Cape Otway (29km)

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

  • Average Low 2021–2026

    11.7 °C

  • Average 2021–2026

    14.2 °C

  • Average High 2021–2026

    17.4 °C
Get WillyWeather+ to remove ads