Cap Island Weather Forecast

    • 16
    • 18

    Cloudy

    • 16
    • 19

    Cloudy

    • 17
    • 20

    Sunny

    • 17
    • 19

    Cloudy

    • 17
    • 18

    Shower

    • 17
    • 19

    Partly cloudy

    • 18
    • 19

    Sunny

Today 12 Mar West Coast

Partly cloudy. Slight chance of a shower west of Nullarbor, near zero chance elsewhere. The chance of a thunderstorm west of Nullarbor. Winds southeasterly 25 to 40 km/h decreasing to 20 to 30 km/h in the late evening.

Lower West Coastal Waters

Elliston to Cape Carnot
Wind
Southeasterly 20 to 25 knots, reaching up to 30 knots offshore in the evening.
Seas
1.5 to 2 metres.
1st Swell
Southerly 2 metres.
Weather
Cloudy.
Weather Situation
A ridge of high pressure extends from a high south of Perth, across waters well south of SA. The high slowly moves eastwards to be centred well south of the Bight by late Friday and over the Tasman Sea by Saturday afternoon, with further high pressure systems building well south of the Bight. A trough over inland WA is expected to move across western SA over the weekend.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cap Island Temperature Statistics View More

March Temperature

Cummins Airport (64km)

  • Lowest 9 March, 2026

    7.5 °C

  • Average March

    18.6 °C

  • Highest 10 March, 2026

    35.2 °C

Climate (2021–Present)

Cummins Airport (64km)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    9.5 °C

  • Average 2021–2026

    15.6 °C

  • Average High 2021–2026

    22.9 °C
Get WillyWeather+ to remove ads