Cap Island Weather Forecast

    • 15
    • 22

    Partly cloudy

    • 20
    • 22

    Windy

    • 16
    • 18

    Shower

    • 17
    • 17

    Windy

    • 14
    • 16

    Partly cloudy

    • 14
    • 18

    Sunny

    • 17
    • 20

    Partly cloudy

Today 3 Dec West Coast

Mostly clear. Winds northeast to southeasterly 15 to 20 km/h.

Extreme Fire Danger Rating

Take action now to protect life and property

Lower West Coastal Waters

Elliston to Cape Carnot
Wind
North to northeasterly 10 to 15 knots.
Seas
Below 1 metre.
1st Swell
Southwesterly 1.5 metres inshore, increasing to 1.5 to 2 metres offshore.
Weather
Partly cloudy.
Weather Situation
A ridge of high pressure extends over SA from the east, as a low pressure trough moves into the far west late this evening. The trough is expected to move eastwards during Thursday. A ridge of high pressure is then forecast to build over the Bight on Friday and a weak cold front will move across the southern coastal districts on Saturday. The high will slowly move eastwards on Sunday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cap Island Temperature Statistics View More

December Temperature

Cummins Airport (64km)

  • Lowest 2 December, 2025

    7.6 °C

  • Average December

    14.4 °C

  • Highest 1 December, 2025

    21.6 °C

Climate (2020–Present)

Cummins Airport (64km)

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  • Average Low 2020–2025

    9.4 °C

  • Average 2020–2025

    15.6 °C

  • Average High 2020–2025

    22.8 °C
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