Cap Island Weather Forecast

    • 11
    • 18

    Sunny

    • 14
    • 18

    Partly cloudy

    • 13
    • 18

    Partly cloudy

    • 13
    • 17

    Partly cloudy

    • 12
    • 18

    Partly cloudy

    • 16
    • 18

    Shower

    • 14
    • 15

    Cloudy

Today 27 Aug West Coast

Mostly sunny. Slight chance of a shower west of Nullarbor later tonight. Near zero chance of rain elsewhere. Winds north to northeasterly 20 to 30 km/h. Daytime maximum temperatures 22 to 27.

Lower West Coastal Waters

Elliston to Cape Carnot
Wind
North to northeasterly 10 to 15 knots, reaching up to 20 knots offshore in the late morning and early afternoon.
Seas
Around 1 metre.
1st Swell
Southwesterly 2 to 3 metres.
Weather
Sunny.
Weather Situation
A high pressure ridge over central SA will move slowly eastwards during today. A low pressure trough over WA is expected to extend over the far west of SA late Thursday and Friday. A high pressure system will move across waters to the south over the weekend to be centred over southern Victoria late Sunday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cap Island Temperature Statistics View More

August Temperature

Cummins Airport (64km)

  • Lowest 2 August, 2026

    2.7 °C

  • Average August

    11.3 °C

  • Highest 8 August, 2026

    19.8 °C

Climate (2021–2026)

Cummins Airport (64km)

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  • Average Low 2021–2026

    9.6 °C

  • Average 2021–2026

    15.7 °C

  • Average High 2021–2026

    22.9 °C
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