Onion Bay Weather Forecast

    • 8
    • 13

    Shower

    • 5
    • 13

    Shower

    • 6
    • 14

    Partly cloudy

    • 8
    • 14

    Shower

    • 9
    • 13

    Shower

    • 7
    • 12

    Shower

    • 7
    • 13

    Shower

Today 5 Aug South West

Cloudy. The chance of morning fog. High chance of showers near the Otways, medium chance elsewhere. Winds westerly 15 to 20 km/h becoming light in the late afternoon. Overnight temperatures falling to between 3 and 6 with daytime temperatures reaching around 13.

Central Victoria Coastal Waters

Cape Otway to Wilsons Promontory
Wind
Southwesterly 15 to 20 knots.
Seas
1 to 1.5 metres, decreasing to 1 metre during the afternoon.
1st Swell
Southwesterly 1 to 1.5 metres, increasing to 1.5 to 2.5 metres in the west.
Weather
Partly cloudy. 90% chance of showers.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Onion Bay Temperature Statistics View More

August Temperature

Cape Otway (29km)

  • Lowest 1 August, 2026

    6.4 °C

  • Average August

    10.5 °C

  • Highest 2 August, 2026

    16.4 °C

Climate (2021–2026)

Cape Otway (29km)

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  • Average Low 2021–2026

    11.8 °C

  • Average 2021–2026

    14.3 °C

  • Average High 2021–2026

    17.5 °C
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