Cape Sir William Grant Weather Forecast

    • 8
    • 13

    Possible shower

    • 8
    • 13

    Cloudy

    • 7
    • 14

    Cloudy

    • 5
    • 20

    Sunny

    • 11
    • 22

    Sunny

    • 13
    • 20

    Shower or two

    • 10
    • 15

    Cloudy

Today 15 Sep South West

Partly cloudy. High chance of showers near the Otways, medium chance elsewhere. Possible small hail near the Otways in the morning and afternoon. Winds west to southwesterly 15 to 25 km/h tending south to southwesterly 25 to 35 km/h in the late morning and afternoon. Overnight temperatures falling to between 5 and 8 with daytime temperatures reaching around 13.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
West to southwesterly 20 to 25 knots tending south to southwesterly 20 to 30 knots during the day.
Seas
2 to 2.5 metres.
1st Swell
Southwesterly 2.5 to 3 metres, increasing to 3 to 5 metres during the morning.
Weather
Partly cloudy. 60% chance of showers, with possible small hail in the far east during the morning and afternoon.
Weather Situation
A cold front crosses the State early today. A strong high pressure system will move south of the Bight later today and extend a ridge over northern Victoria. The high will then move slowly east, reaching western Victoria by Thursday night then moving over NSW on Friday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cape Sir William Grant Temperature Statistics View More

September Temperature

Cape Nelson Lighthouse (7km)

  • Lowest 8 September, 2026

    3.5 °C

  • Average September

    13 °C

  • Highest 13 September, 2026

    23.7 °C

Climate (2021–2026)

Cape Nelson Lighthouse (7km)

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  • Average Low 2021–2026

    11.9 °C

  • Average 2021–2026

    14.4 °C

  • Average High 2021–2026

    17.6 °C
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