Rocky Island Weather Forecast
- 14
- 15
Cloudy
- 15
- 15
Partly cloudy
- 12
- 16
Partly cloudy
- 13
- 15
Shower
- 14
- 15
Shower
- 12
- 15
Cloudy
- 14
- 17
Shower
Today 21 Aug Lower Eyre Peninsula
Cloudy. Winds westerly 15 to 20 km/h becoming light in the late afternoon.
Lower West Coastal Waters
Elliston to Cape Carnot- Wind
- West to southwesterly 10 to 15 knots.
- Seas
- Below 1 metre.
- 1st Swell
- Southwesterly 3 metres.
- Weather
- Cloudy.
- Weather Situation
- A high pressure system over the Bight slowly drifts over SA on Saturday to be centred over the eastern states by Sunday. A weak front embedded in the southwesterly flow around the high, clips the southeast early Saturday morning. A low pressure system and associated trough move into the far west later Sunday and then moves across the state on Monday an d out over the eastern states by later Tuesday. Another ridge of high pressure moves into the west later Tuesday.
Rocky Island Temperature Statistics View More
August Temperature
Cummins Airport (41km)
Lowest 2 August, 2026
2.7 °CAverage August
11.2 °CHighest 8 August, 2026
19.8 °C
Climate (2021–2026)
Cummins Airport (41km)
Average Low 2021–2026
9.6 °CAverage 2021–2026
15.7 °CAverage High 2021–2026
22.9 °C