View the current warnings for South Australia
Forecast issued at 3:40 am CDT on Tuesday 20 October 2026.
Weather Situation
A trough of low pressure over southeastern South Australia lingers in the east, before weakening from Thursday. A slow moving high pressure system in the Tasman Sea re-establishes a ridge across southern parts from Wednesday. Another series of troughs move into western parts on Thursday and broadly across SA on Friday.
Forecast for Tuesday until midnight
- Winds
- West to southwesterly 10 to 15 knots turning southerly in the late morning.
- Seas
- Below 1 metre.
- Swell
- South to southwesterly below 0.5 metres.
- Weather
- Partly cloudy. The chance of a thunderstorm.
Wednesday 21 October
- Winds
- South to southeasterly 10 to 15 knots tending south to southwesterly in the middle of the day then tending south to southeasterly in the evening.
- Seas
- Below 1 metre.
- Swell
- South to southwesterly below 0.5 metres.
- Weather
- Cloud clearing.
Thursday 22 October
- Winds
- Variable about 10 knots.
- Seas
- Below 1 metre.
- Swell
- South to southwesterly below 1 metre.
- Weather
- Partly cloudy.
Please be awareWind and wave forecasts are averages. Wind gusts can be 40 per cent stronger than the forecast, and stronger still in squalls and thunderstorms. Maximum waves can be twice the forecast height.
Nearby Coastal Waters
- See detailed wind and wave forecasts on MetEye
- This forecast is also available via scheduled broadcasts on marine radio.
- Latest Coastal Observations
- Tide Predictions
- Marine Knowledge Centre - explanations and definitions
The next routine forecast will be issued at 9:30 am CDT Tuesday.
Product IDS11069