Onion Bay Weather Forecast

    • 8
    • 15

    Shower

    • 9
    • 16

    Shower

    • 11
    • 19

    Cloudy

    • 9
    • 22

    Partly cloudy

    • 15
    • 22

    Shower

    • 13
    • 19

    Shower

    • 11
    • 18

    Shower

Today 27 Oct South West

Cloudy. The chance of fog in the north in the early morning. Medium chance of showers, most likely in the morning and afternoon. Light winds becoming west to northwesterly 15 to 20 km/h in the morning then tending west to southwesterly 15 to 25 km/h in the middle of the day. Overnight temperatures falling to between 3 and 7 with daytime temperatures reaching around 15.

Central Victoria Coastal Waters

Cape Otway to Wilsons Promontory
Wind
Southwesterly 15 to 20 knots tending westerly 15 to 25 knots in the morning.
Seas
1 to 2 metres, decreasing below 1.5 metres during the morning, then increasing to 1.5 to 2 metres around midday.
1st Swell
Southwesterly 1.5 to 2.5 metres, decreasing to 1 to 1.5 metres during the afternoon.
Weather
Cloudy.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Onion Bay Temperature Statistics View More

October Temperature

Cape Otway (29 km)

  • Lowest 5 October, 2026

    7.9 °C

  • Average October

    15.3 °C

  • Highest 23 October, 2026

    30.9 °C

Climate (2021–2026)

Cape Otway (29 km)

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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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