Cape Sir William Grant Weather Forecast

    • 10
    • 16

    Cloudy

    • 10
    • 17

    Cloudy

    • 11
    • 19

    Cloudy

    • 10
    • 27

    Sunny

    • 14
    • 32

    Mostly sunny

    • 15
    • 21

    Shower or two

    • 11
    • 16

    Possible shower

Today 25 Dec South West

Cloudy. Medium chance of showers near the Otways, near zero chance elsewhere. Winds southerly 20 to 30 km/h. Daytime maximum temperatures around 17.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
Southwesterly 15 to 20 knots, reaching up to 25 knots in the far east in the late afternoon. Winds turning southerly in the evening.
Seas
1 to 1.5 metres, increasing to 1.5 to 2 metres in the far east.
1st Swell
Southwesterly 4 metres.
Weather
Cloudy.
Weather Situation
A high pressure system south of the Bight extends a broad ridge east over Victoria and Bass Strait. The high is expected to slowly move east over Tasmania on Saturday and the Tasman Sea on Sunday while maintaining a ridge over Bass Strait.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cape Sir William Grant Temperature Statistics View More

December Temperature

Cape Nelson Lighthouse (7km)

  • Lowest 5 December, 2025

    9.7 °C

  • Average December

    15.5 °C

  • Highest 18 December, 2025

    34.6 °C

Climate (2020–Present)

Cape Nelson Lighthouse (7km)

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  • Average Low 2020–2025

    11.8 °C

  • Average 2020–2025

    14.3 °C

  • Average High 2020–2025

    17.5 °C
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