Cap Island Weather Forecast
- 17
- 18
Clear
- 16
- 19
Sunny
- 17
- 19
Partly cloudy
- 18
- 21
Shower
- 19
- 19
Shower
- 17
- 19
Windy
- 17
- 19
Partly cloudy
Today 18 Feb West Coast
Mostly clear. Winds southerly 25 to 35 km/h.
Lower West Coastal Waters
Elliston to Cape Carnot- Wind
- South to southwesterly about 10 knots.
- Seas
- Below 1 metre.
- 1st Swell
- Southwesterly 3 metres.
- Weather
- Mostly clear.
- Weather Situation
- A ridge of high pressure across the south of SA will weaken during Saturday as a broad trough of low pressure extends across the west and north. The trough will move eastwards during Sunday and a cold front will move across the south. A broad area of low pressure will persist across the north early next week and a high pressure ridge will become established over waters to the south.
Cap Island Temperature Statistics View More
February Temperature
Cummins Airport (64km)
Lowest 4 February, 2026
6.5 °CAverage February
21.8 °CHighest 10 February, 2026
39.7 °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