Onion Bay Weather Forecast

    • 7
    • 12

    Shower

    • 5
    • 13

    Shower

    • 5
    • 14

    Partly cloudy

    • 5
    • 14

    Shower

    • 7
    • 12

    Shower

    • 7
    • 12

    Shower

    • 7
    • 13

    Shower

Today 30 Jul South West

Cloudy. The chance of morning fog in the north. High chance of showers near the coast, medium chance elsewhere. Snow falling above 1100 metres. Light winds becoming west to southwesterly 15 to 20 km/h in the middle of the day then becoming light in the late afternoon. Overnight temperatures falling to between 3 and 6 with daytime temperatures reaching around 12.

Central Victoria Coastal Waters

Cape Otway to Wilsons Promontory
Wind
Southwesterly 15 to 20 knots, reaching up to 25 knots in the far east early in the morning.
Seas
1.5 to 2 metres, decreasing to 1 to 1.5 metres during the morning.
1st Swell
Southwesterly 2 to 3 metres.
Weather
Cloudy. 80% 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

    11.3 °C

  • Highest 1 July, 2026

    17.5 °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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