View the current warnings for South Australia
Forecast issued at 9:30 am CST on Monday 20 April 2026.
Weather Situation
A strong high pressure system east of Tasmania will maintain a ridge over SA this week. A cold front is expected to weaken and slide across western and southern coasts during Tuesday and Wednesday. A second cold front may pass over the south again on Saturday with a high pressure system to follow over waters south of the Bight on Sunday.
Forecast for Monday until midnight
- Winds
- South to southeasterly below 10 knots increasing to 10 to 15 knots in the middle of the day then tending east to southeasterly in the evening.
- Seas
- Below 1 metre.
- 1st Swell
- Southwesterly 1.5 to 2 metres.
- 2nd Swell
- Southerly around 1 metre.
- Weather
- Partly cloudy.
Tuesday 21 April
- Winds
- East to northeasterly 10 to 15 knots turning northerly in the late morning and early afternoon. Winds reaching up to 20 knots offshore in the late evening.
- Seas
- Around 1 metre.
- Swell
- Southwesterly 2 metres.
- Weather
- Sunny.
Wednesday 22 April
- Winds
- North to northwesterly 15 to 20 knots shifting south to southeasterly 10 to 15 knots during the afternoon.
- Seas
- Around 1 metre.
- Swell
- Southwesterly 1.5 to 2 metres.
- 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 3:30 pm CST Monday.
Product IDS11066