Cap Island Weather Forecast
- 16
- 19
Partly cloudy
- 17
- 19
Partly cloudy
- 18
- 22
Shower
- 19
- 19
Shower
- 17
- 19
Windy
- 17
- 19
Windy
- 18
- 21
Partly cloudy
Today 19 Feb West Coast
Mostly sunny. The chance of fog south of Streaky Bay early this morning. Winds southeasterly 15 to 20 km/h becoming light in the early morning then becoming south to southeasterly 20 to 30 km/h in the morning. Daytime maximum temperatures 27 to 34.
Lower West Coastal Waters
Elliston to Cape Carnot- Wind
- Variable about 10 knots becoming southerly 15 to 20 knots in the middle of the day then tending southeasterly in the evening.
- Seas
- Below 1 metre, increasing to 1 to 1.5 metres by early evening.
- 1st Swell
- Southwesterly 2.5 to 3 metres.
- Weather
- Mostly sunny.
- 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
21.3 °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