Cape Sir William Grant Weather Forecast

    • 8
    • 13

    Cloudy

    • 8
    • 14

    Partly cloudy

    • 5
    • 15

    Mostly sunny

    • 6
    • 19

    Mostly sunny

    • 11
    • 21

    Shower or two

    • 12
    • 20

    Showers

    • 10
    • 14

    Shower or two

Today 9 Sep South West

Cloudy. Slight chance of a shower, most likely in the early morning. Winds southwesterly 20 to 30 km/h turning southerly 25 to 35 km/h early in the morning then decreasing to 15 to 20 km/h in the evening. Overnight temperatures falling to between 5 and 8 with daytime temperatures reaching around 12.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
South to southwesterly 15 to 25 knots, reaching up to 30 knots early in the morning.
Seas
1.5 to 2.5 metres, decreasing to 1 to 1.5 metres during the afternoon.
1st Swell
Southwesterly 4 metres, increasing to 4 to 6 metres during the morning.
Weather
Cloudy.
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

    12.2 °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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