Onion Bay Weather Forecast

    • 6
    • 17

    Partly cloudy

    • 9
    • 21

    Cloudy

    • 14
    • 21

    Shower

    • 10
    • 13

    Shower

    • 8
    • 14

    Cloudy

    • 9
    • 20

    Partly cloudy

    • 12
    • 23

    Shower

Today 23 Sep South West

Mostly sunny. The chance of fog about the ranges in the early morning. Patches of morning frost. Light winds. Overnight temperatures falling to between 1 and 4 with daytime temperatures reaching around 20.

Central Victoria Coastal Waters

Cape Otway to Wilsons Promontory
Wind
Easterly 10 to 15 knots.
Seas
Below 1 metre.
1st Swell
Southwesterly 2 to 3 metres, decreasing to 1.5 to 2 metres later in the evening.
Weather
Sunny.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Onion Bay Temperature Statistics View More

September Temperature

Cape Otway (29km)

  • Lowest 8 September, 2026

    5.8 °C

  • Average September

    12.9 °C

  • Highest 20 September, 2026

    27.3 °C

Climate (2021–2026)

Cape Otway (29km)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    11.8 °C

  • Average 2021–2026

    14.3 °C

  • Average High 2021–2026

    17.5 °C
Get WillyWeather+ to remove ads