Cape Sir William Grant Weather Forecast

    • 9
    • 15

    Showers

    • 8
    • 15

    Showers increasing

    • 9
    • 15

    Shower or two

    • 7
    • 16

    Partly cloudy

    • 9
    • 17

    Showers

    • 8
    • 13

    Showers

    • 7
    • 13

    Shower or two

Today 20 Aug South West

Cloudy. The chance of fog in the northeast early this morning. Very high chance of showers, most likely in the late morning and afternoon. Winds northwesterly 20 to 30 km/h. Daytime maximum temperatures around 15.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
West to northwesterly 15 to 25 knots, reaching up to 30 knots in the far east early in the morning.
Seas
1.5 to 2.5 metres, decreasing to 1 to 1.5 metres during the morning.
1st Swell
Westerly 2 to 3 metres.
Weather
Cloudy. 95% chance of showers.
Weather Situation
A large high pressure system centred over the Tasman Sea is responsible for northerly winds across Victoria. A trough will move across the state today. A ridge of high pressure will become established over the north on Friday and over the weekend and a couple of weak troughs will pass to the south in a broad westerly flow.
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  • 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

    11.8 °C

  • Highest 18 August, 2026

    17.4 °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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