Cape Sir William Grant Weather Forecast

    • 10
    • 15

    Shower or two

    • 9
    • 14

    Early shower or two

    • 4
    • 14

    Possible late shower

    • 8
    • 13

    Cloudy

    • 8
    • 14

    Cloudy

    • 5
    • 16

    Partly cloudy

    • 7
    • 19

    Partly cloudy

Today 6 Sep South West

Cloudy. Medium chance of showers near the coast, slight chance elsewhere. Winds westerly 15 to 20 km/h becoming light in the evening.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
Westerly 10 to 15 knots, reaching up to 20 knots in the far east during the afternoon and evening.
Seas
Below 1 metre, increasing to 1 to 1.5 metres in the east.
1st Swell
West to southwesterly 3 metres, increasing to 3 to 4 metres in the west.
Weather
Cloudy. 50% chance of showers.
Weather Situation
A high pressure ridge extends over northern Victoria as a weak cold front approaches from the southwest. The front is forecast to cross southern Victoria on Monday before the ridge extends across the State again on Tuesday. Another weak cold front will clip southern Victoria on Wednesday, with a high pressure system south of the Bight approaching western Victoria later on Thursday.
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 1 September, 2026

    9.2 °C

  • Average September

    13.3 °C

  • Highest 1 September, 2026

    19.3 °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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