Cape Sir William Grant Weather Forecast

    • 7
    • 13

    Shower or two

    • 6
    • 15

    Shower or two

    • 5
    • 16

    Partly cloudy

    • 8
    • 15

    Showers

    • 8
    • 13

    Showers

    • 8
    • 13

    Showers easing

    • 7
    • 14

    Showers

Today 5 Aug South West

Cloudy. The chance of morning fog. High chance of showers near the Otways, medium chance elsewhere. Winds westerly 15 to 20 km/h becoming light in the late afternoon. Overnight temperatures falling to between 3 and 6 with daytime temperatures reaching around 13.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
Southwesterly 10 to 15 knots, reaching up to 20 knots in the east during the morning. Winds turning west to northwesterly during the afternoon and evening.
Seas
1 to 1.5 metres, decreasing to 1 metre around midday.
1st Swell
Southwesterly 2 to 2.5 metres.
Weather
Cloudy. 50% chance of showers.
Weather Situation
A low east of Tasmania moves further away, allowing a high pressure system to the north to extend a ridge over the west, moving slowly eastwards across the state through to the end of the week as the high moves out over the Tasman Sea on Saturday. A weak front clips the south on Thursday.
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

    10.4 °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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