Cap Island Weather Forecast

    • 12
    • 19

    Clear

    • 15
    • 15

    Shower

    • 13
    • 15

    Shower

    • 14
    • 15

    Shower

    • 13
    • 14

    Partly cloudy

    • 13
    • 14

    Partly cloudy

    • 12
    • 14

    Sunny

Today 18 Sep West Coast

Clear. Winds west to southwesterly 20 to 30 km/h tending south to southwesterly 15 to 25 km/h in the evening.

Lower West Coastal Waters

Elliston to Cape Carnot
Wind
West to southwesterly 10 to 15 knots.
Seas
1 to 1.5 metres, decreasing to 1 metre later in the evening.
1st Swell
Southwesterly 2 to 2.5 metres.
Weather
Clear.
Weather Situation
A high pressure system lies over the Tasman Sea with a ridge extending into the east of the state. A weak trough over South Australian waters will continue moving through eastern waters tonight. A cold front will pass over the south during Friday afternoon with a southwesterly flow persisting through the weekend as a ridge of high pressure extends over northern parts of the state.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cap Island Temperature Statistics View More

September Temperature

Cummins Airport (64km)

  • Lowest 12 September, 2025

    0.8 °C

  • Average September

    11.8 °C

  • Highest 6 September, 2025

    26.7 °C

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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