Onion Bay Weather Forecast

    • 10
    • 17

    Windy

    • 10
    • 19

    Shower

    • 7
    • 13

    Shower

    • 9
    • 14

    Cloudy

    • 9
    • 18

    Partly cloudy

    • 12
    • 23

    Partly cloudy

    • 12
    • 18

    Shower

Today 5 Nov South West

Cloudy. Slight chance of a shower in the morning. Winds west to southwesterly 20 to 30 km/h becoming light in the late evening. Overnight temperatures falling to between 6 and 9 with daytime temperatures reaching around 18.

Central Victoria Coastal Waters

Cape Otway to Wilsons Promontory
Wind
Southwesterly 15 to 25 knots, reaching up to 30 knots during the morning. Winds turning westerly 15 to 20 knots in the early afternoon.
Seas
1.5 to 2.5 metres, decreasing to 1.5 metres during the afternoon.
1st Swell
West to southwesterly 1.5 to 2 metres, increasing to 2 to 3 metres in the far west.
Weather
Partly cloudy. The chance of a thunderstorm in the far east in the early morning.
Weather Situation
A cold front will continue to cross Victoria during Wednesday evening, with cool southwesterly winds to follow. A high pressure system approaching from the west is expected to extend a ridge over Victoria on Thursday before the next cold front crosses the State overnight Friday and early Saturday. A second high pressure system in the Bight will then extend a ridge over Victoria for the remainder of the weekend.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Onion Bay Temperature Statistics View More

November Temperature

Cape Otway (29 km)

  • Lowest 4 November, 2026

    10.5 °C

  • Average November

    14 °C

  • Highest 1 November, 2026

    17 °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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