Onion Bay Weather Forecast

    • 9
    • 14

    Shower

    • 10
    • 15

    Shower

    • 10
    • 15

    Partly cloudy

    • 8
    • 15

    Partly cloudy

    • 9
    • 17

    Partly cloudy

    • 12
    • 17

    Shower

    • 10
    • 15

    Shower

Today 5 Jun South West

Cloudy. High chance of showers in the south, slight chance elsewhere. Winds southwesterly 15 to 25 km/h turning westerly during the morning. Daytime maximum temperatures around 14.

Central Victoria Coastal Waters

Cape Otway to Wilsons Promontory
Wind
Southwesterly 20 to 25 knots turning westerly in the middle of the day. Winds reaching up to 30 knots during the afternoon and evening.
Seas
1.5 to 2.5 metres.
1st Swell
Southwesterly 1 to 1.5 metres, increasing to 1.5 to 2.5 metres in the far west.
Weather
Cloudy. 90% chance of showers.
Weather Situation
A low pressure system in the western Tasman Sea will continue moving east. A new weak trough will skim the south later today before a ridge of high pressure develops over the state on Saturday. This ridge will persist over Victoria on the long weekend as the high pressure centre moves to the north and Sunday and then into the Tasman by Monday.
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 1 June, 2026

    9.3 °C

  • Average June

    12.1 °C

  • Highest 2 June, 2026

    15.6 °C

Climate (2021–Present)

Cape Otway (29km)

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  • Average Low 2021–2026

    11.7 °C

  • Average 2021–2026

    14.2 °C

  • Average High 2021–2026

    17.4 °C
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