Cape Sir William Grant Weather Forecast

    • 8
    • 13

    Cloudy

    • 7
    • 14

    Cloudy

    • 5
    • 20

    Mostly sunny

    • 11
    • 23

    Sunny

    • 13
    • 20

    Shower or two. Windy

    • 9
    • 14

    Cloudy

    • 7
    • 16

    Cloudy

Today 16 Sep South West

Cloudy. Slight chance of a shower. Winds southerly 20 to 30 km/h becoming light in the late evening. Daytime maximum temperatures around 12.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
Southerly 15 to 20 knots turning southwesterly 10 to 15 knots during the afternoon and evening.
Seas
1 to 1.5 metres, decreasing below 1 metre around midday.
1st Swell
Southwesterly 4 to 5 metres.
Weather
Cloudy.
Weather Situation
A strong high pressure system south of the Bight is directing a cold southwesterly airstream across Victoria. The high will move slowly east on Wednesday and extend a ridge across southern Victoria, with the high moving over western Victoria by Thursday night. Winds will tend warmer northwesterly on Friday and into Saturday as the high moves slowly over NSW.
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

    12.9 °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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