Cap Island Weather Forecast
- 18
- 21
Partly cloudy
- 19
- 20
Sunny
- 18
- 18
Shower
- 16
- 17
Windy
- 15
- 16
Cloudy
- 15
- 17
Cloudy
- 15
- 17
Partly cloudy
Today 23 Mar West Coast
Mostly clear. Winds northwest to northeasterly 15 to 20 km/h tending east to southeasterly in the evening.
Lower West Coastal Waters
Elliston to Cape Carnot- Wind
- Variable about 10 knots.
- Seas
- Below 1 metre.
- 1st Swell
- Southwesterly 1.5 metres.
- Weather
- Clear.
- Weather Situation
- A high pressure system over the Tasman sea, extends a ridge over southern SA. A broad trough moves over SA Tuesday then a cold front clips the southeast as an upper trough moves up over SA Wednesday and Thursday. A new ridge develops south of the Bight late in the week.
Cap Island Temperature Statistics View More
March Temperature
Cummins Airport (64km)
Lowest 9 March, 2026
7.5 °CAverage March
18.6 °CHighest 10 March, 2026
35.2 °C
Climate (2021–Present)
Cummins Airport (64km)
Average Low 2021–2026
9.5 °CAverage 2021–2026
15.6 °CAverage High 2021–2026
22.9 °C