Onion Bay Weather Forecast

    • 6
    • 12

    Shower

    • 9
    • 13

    Shower

    • 9
    • 13

    Shower

    • 8
    • 15

    Cloudy

    • 8
    • 14

    Cloudy

    • 7
    • 14

    Partly cloudy

    • 6
    • 15

    Partly cloudy

Today 12 Jul South West

Cloudy. Very high chance of showers. Winds west to northwesterly 25 to 35 km/h. Overnight temperatures falling to around 5 with daytime temperatures reaching between 11 and 14.

Central Victoria Coastal Waters

Cape Otway to Wilsons Promontory
Wind
Northwesterly 25 to 30 knots turning westerly during the morning. Winds reaching up to 35 knots during the morning and early afternoon.
Seas
2.5 to 3 metres, increasing to 2.5 to 4 metres in the far west.
1st Swell
Westerly 2 to 3 metres, increasing to 2 to 4 metres during the morning.
Weather
Cloudy. Near 100% chance of showers.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Onion Bay Temperature Statistics View More

July Temperature

Cape Otway (29km)

  • Lowest 10 July, 2026

    5 °C

  • Average July

    11 °C

  • Highest 1 July, 2026

    17.5 °C

Climate (2021–2026)

Cape Otway (29km)

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  • Average Low 2021–2026

    11.7 °C

  • Average 2021–2026

    14.3 °C

  • Average High 2021–2026

    17.4 °C
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