Lower South East Coastal Waters Forecast: Cape Jaffa to SA-Vic Border

View the current warnings for South Australia

Forecast issued at 3:30 pm CDT on Wednesday 21 January 2026.

Weather Situation

A high pressure system south of WA maintains a ridge over western and southern SA, before it is expected to move eastwards on Thursday to be over the Tasman Sea on Friday. A trough of low pressure approaches from the west on Friday, forecast to move over SA during Saturday, reaching the northeast by early Sunday. Another high pressure system is expected to move over waters to the south over the weekend.

Forecast for Wednesday until midnight

Winds
Southerly 20 to 25 knots.
Seas
1.5 to 2 metres.
Swell
Southwesterly 2.5 metres.
Weather
Partly cloudy.

Thursday 22 January

Winds
South to southeasterly 15 to 20 knots, reaching up to 25 knots north of Port MacDonnell in the evening. Winds turning easterly in the late evening.
Seas
1 to 2 metres, decreasing to 1 to 1.5 metres during the morning, then increasing to 1 to 2 metres by early evening.
1st Swell
Southwesterly 2 to 2.5 metres.
2nd Swell
Southerly around 1 metre, increasing to 1 to 1.5 metres during the morning, then tending southeasterly below 1 metre by early evening.
Weather
Partly cloudy.

Friday 23 January

Winds
Easterly 15 to 20 knots.
Seas
1 to 2 metres, decreasing below 1 metre around midday, increasing to 1 to 1.5 metres south of Beachport by early evening.
Swell
Southwesterly 1.5 to 2 metres, decreasing to 1 to 1.5 metres during the morning.
Weather
Sunny.

Saturday 24 January

Winds
North to northeasterly 15 to 20 knots shifting southerly during the afternoon.
Seas
Around 1 metre, increasing to 1 to 1.5 metres during the morning.
Swell
Southwesterly 1 to 1.5 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

WA - Eucla Coast - Coastal Waters Forecast Vic - West Coast - Coastal Waters Forecast SA - Lower South East Coast - Coastal Waters Forecast SA - Upper South East Coast - Coastal Waters Forecast SA - Adelaide Metropolitan Waters Forecast SA - Gulf St Vincent - Coastal Waters Forecast SA - Spencer Gulf - Coastal Waters Forecast SA - Investigator Strait - Coastal Waters Forecast SA - South Central Coast - Coastal Waters Forecast SA - Central Coast - Coastal Waters Forecast SA - Lower West Coast - Coastal Waters Forecast SA - Upper West Coast - Coastal Waters Forecast SA - Far West Coast - Coastal Waters Forecast

The next routine forecast will be issued at 9:30 pm CDT Wednesday.

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