View the current warnings for South Australia
Forecast issued at 9:30 pm 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
- East to southeasterly about 10 knots.
- Seas
- Below 1 metre.
- Swell
- Southwesterly 1.5 to 2 metres.
- Weather
- Clear.
Tuesday 21 April
- Winds
- East to northeasterly 10 to 15 knots turning northerly 15 to 20 knots before dawn then tending southeast to southwesterly 10 to 15 knots in the late evening. Winds reaching up to 25 knots offshore in the late morning.
- Seas
- Around 1 metre, increasing to 1 to 1.5 metres during the morning.
- Swell
- Southwesterly 1.5 to 2 metres.
- Weather
- Mostly sunny.
Wednesday 22 April
- Winds
- Southerly 15 to 20 knots turning southeasterly in the morning.
- Seas
- Around 1 metre.
- Swell
- Southwesterly 1.5 to 2.5 metres.
- Weather
- Cloud clearing.
Thursday 23 April
- Winds
- Easterly 10 to 15 knots turning north to northeasterly 15 to 20 knots during the morning.
- Seas
- Around 1 metre.
- Swell
- Southwesterly 1.5 to 2.5 metres.
- Weather
- 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 3:40 am CST Tuesday.
Product IDS11062