Cape Sir William Grant Weather Forecast

    • 9
    • 15

    Shower or two

    • 8
    • 14

    Possible shower

    • 6
    • 14

    Partly cloudy

    • 6
    • 17

    Mostly sunny

    • 7
    • 18

    Possible shower developing

    • 10
    • 16

    Showers

    • 9
    • 16

    Showers

Today 14 Aug South West

Cloudy. Medium chance of showers, becoming less likely late this afternoon and evening. Winds west to northwesterly 15 to 20 km/h tending west to southwesterly 15 to 25 km/h in the middle of the day then becoming light in the late afternoon. Daytime maximum temperatures around 14.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
Westerly 15 to 20 knots turning southwesterly 10 to 15 knots in the late morning.
Seas
1 to 1.5 metres, decreasing below 1 metre during the afternoon.
1st Swell
Southwesterly 4 to 5 metres.
Weather
Cloudy. 60% chance of showers.
Weather Situation
A high pressure system developing south of the Bight extends a ridge over Victoria. The high pressure system will drift slowly to the southeast over Tasmania over the weekend and centred over the Tasman Sea by early next week.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cape Sir William Grant Temperature Statistics View More

August Temperature

Cape Nelson Lighthouse (7km)

  • Lowest 1 August, 2026

    5.6 °C

  • Average August

    11.4 °C

  • Highest 2 August, 2026

    15.7 °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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