Onion Bay Weather Forecast

    • 9
    • 15

    Cloudy

    • 11
    • 14

    Shower

    • 10
    • 15

    Shower

    • 10
    • 13

    Shower

    • 7
    • 12

    Shower

    • 8
    • 11

    Shower

    • 8
    • 12

    Shower

Today 29 Jun South West

Cloudy. Medium chance of showers. Winds north to northeasterly 20 to 30 km/h. Daytime maximum temperatures around 14.

Central Victoria Coastal Waters

Cape Otway to Wilsons Promontory
Wind
Northeasterly 15 to 20 knots turning northerly during the afternoon and evening. Winds reaching up to 25 knots in the far west in the late morning and again in the evening.
Seas
Around 1 metre, increasing to 1 to 2 metres in the west.
1st Swell
Southwesterly around 1 metre, increasing to 1.5 to 2 metres in the far west.
Weather
Partly cloudy.
Weather Situation
A high pressure system moves over the southern Tasman Sea, tending the flow more northerly today, before strengthening into Tuesday as a series of cold fronts cross the Bight during the week. Winds are expected to shift northwesterly into Wednesday as a cold front crosses Victoria, ahead of a secondary cold front to shift winds southwesterly into late Thursday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Onion Bay Temperature Statistics View More

June Temperature

Cape Otway (29km)

  • Lowest 15 June, 2026

    6.5 °C

  • Average June

    12.8 °C

  • Highest 12 June, 2026

    19.2 °C

Climate (2021–2026)

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