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
- Southwesterly 10 to 15 knots, reaching up to 20 knots inshore early in the morning. Winds turning south to southeasterly in the evening.
- Seas
- Around 1 metre, decreasing below 0.5 metres during the morning, then increasing to below 1 metre around midday.
- Swell
- West to southwesterly 1 to 1.5 metres.
- Weather
- Partly cloudy. The chance of a thunderstorm during the morning and afternoon.
Wednesday 21 October
- Winds
- Southeasterly 10 to 15 knots.
- Seas
- Below 1 metre.
- Swell
- West to southwesterly around 1 metre, increasing to 1 to 1.5 metres during the afternoon.
- Weather
- Mostly sunny.
Thursday 22 October
- Winds
- Variable about 10 knots.
- Seas
- Below 1 metre.
- Swell
- West to southwesterly 1 to 1.5 metres, increasing to 1 to 2 metres inshore.
- Weather
- Mostly sunny.
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 IDS11070