Mounts Bay Weather Forecast

    • 9
    • 13

    Partly cloudy

    • 8
    • 15

    Partly cloudy

    • 10
    • 23

    Becoming windy. Partly cloudy

    • 15
    • 22

    Showers

    • 13
    • 19

    Showers

    • 10
    • 15

    Possible shower

    • 9
    • 15

    Partly cloudy

Today 27 Sep South West

Partly cloudy. Winds southeasterly 20 to 30 km/h decreasing to 15 to 20 km/h in the evening. Daytime maximum temperatures around 15.

Central Victoria Coastal Waters

Cape Otway to Wilsons Promontory
Wind
South to southeasterly 10 to 15 knots, reaching up to 20 knots inshore during the afternoon and evening.
Seas
Around 1 metre.
1st Swell
Southwesterly 1.5 to 2 metres, increasing to 2.5 to 3 metres in the far west.
Weather
Mostly sunny.
Weather Situation
A strong high pressure system is building south of the Bight. This high will extend a ridge over Tasmania and along the east coast of NSW on Sunday, before moving into the Tasman Sea late Monday. A weak trough may move into the west of Victoria on Tuesday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Mounts Bay Temperature Statistics View More

September Temperature

Cape Otway (16km)

  • Lowest 8 September, 2026

    5.8 °C

  • Average September

    13.1 °C

  • Highest 20 September, 2026

    27.3 °C

Climate (2021–2026)

Cape Otway (16km)

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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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