Rocky Island Weather Forecast
- 21
- 24
Windy
- 18
- 19
Windy
- 17
- 19
Windy
- 17
- 20
Partly cloudy
- 16
- 19
Sunny
- 17
- 19
Partly cloudy
- 17
- 20
Windy
Today 30 Jan Lower Eyre Peninsula
Mostly sunny. Winds southeasterly 25 to 35 km/h. Daytime maximum temperatures 30 to 37.
Lower West Coastal Waters
Elliston to Cape Carnot- Wind
- Southeasterly 15 to 25 knots, reaching up to 30 knots during the afternoon and evening.
- Seas
- 1.5 metres, increasing to 1.5 to 2.5 metres during the morning.
- 1st Swell
- Southwesterly 1.5 metres.
- Weather
- Mostly sunny.
- Weather Situation
- A low pressure trough lingering over northern parts of SA gradually moves east today as a high pressure system moves into the Tasman Sea. A stronger high pressure system moves into the Bight from the west on Saturday, pushing the trough out to the far northeast, with a south to southeasterly flow developing across the entire state by Sunday. The high continues to move eastwards, maintaining a ridge over southern parts, as the trough begins to develop in the north again.
Rocky Island Temperature Statistics View More
January Temperature
Cummins Airport (41km)
Lowest 5 January, 2026
7.5 °CAverage January
22.3 °CHighest 26 January, 2026
47.9 °C
Climate (2021–Present)
Cummins Airport (41km)
Average Low 2021–2026
9.5 °CAverage 2021–2026
15.6 °CAverage High 2021–2026
22.9 °C