Cape Sir William Grant Weather Forecast

    • 10
    • 16

    Shower or two

    • 7
    • 17

    Cloudy

    • 6
    • 17

    Partly cloudy

    • 8
    • 17

    Cloudy

    • 9
    • 15

    Showers

    • 8
    • 15

    Shower or two

    • 8
    • 16

    Shower or two

Today 20 May South West

Cloudy. High chance of showers near the Otways, medium chance elsewhere. Winds westerly 15 to 20 km/h tending southwesterly 20 to 30 km/h in the morning then becoming light in the evening. Daytime maximum temperatures around 16.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
Southwesterly 15 to 20 knots decreasing to about 10 knots in the late evening.
Seas
1 to 1.5 metres, decreasing to 1 metre during the afternoon.
1st Swell
Southwesterly 2 to 2.5 metres.
Weather
Partly cloudy. 50% chance of showers.
Weather Situation
A high near the South Australian coast extends a ridge across northern Victoria while a weak cold front passes through Bass Strait during Wednesday morning. The ridge will extend across the remainder of Victoria late Wednesday then persist for Thursday and Friday. The high centre will move southeast on Saturday while the ridge continues to dominate.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cape Sir William Grant Temperature Statistics View More

May Temperature

Cape Nelson Lighthouse (7km)

  • Lowest 7 May, 2026

    6.7 °C

  • Average May

    14.9 °C

  • Highest 1 May, 2026

    28.1 °C

Climate (2021–Present)

Cape Nelson Lighthouse (7km)

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  • Average Low 2021–2026

    11.8 °C

  • Average 2021–2026

    14.3 °C

  • Average High 2021–2026

    17.6 °C
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