Cap Island Weather Forecast

    • 13
    • 15

    Partly cloudy

    • 12
    • 20

    Shower

    • 18
    • 23

    Shower

    • 15
    • 16

    Shower

    • 14
    • 15

    Shower

    • 12
    • 13

    Shower

    • 12
    • 13

    Shower

Today 4 Sep West Coast

Partly cloudy. The chance of morning fog south of Streaky Bay. High chance of showers west of Nullarbor, slight chance elsewhere. Winds east to northeasterly 15 to 25 km/h tending north to northeasterly 25 to 35 km/h during the morning then tending northeast to southeasterly 20 to 30 km/h during the afternoon. Overnight temperatures falling to between 4 and 10 with daytime temperatures reaching the low to mid 20s.

Lower West Coastal Waters

Elliston to Cape Carnot
Wind
Variable about 10 knots becoming east to southeasterly 15 to 25 knots during the day.
Seas
Below 1 metre, increasing to 1 to 1.5 metres during the evening.
1st Swell
Southwesterly 2.5 to 3 metres inshore, increasing to 2.5 to 4 metres offshore.
Weather
Partly cloudy.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cap Island Temperature Statistics View More

September Temperature

Cummins Airport (64km)

  • Lowest 1 September, 2025

    3.7 °C

  • Average September

    7.6 °C

  • Highest

    –

Climate (2020–Present)

Cummins Airport (64km)

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  • Average Low 2020–2025

    9.5 °C

  • Average 2020–2025

    15.6 °C

  • Average High 2020–2025

    22.9 °C
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