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

View the current warnings for South Australia

Forecast issued at 3:40 am CDT on Friday 21 November 2025.

Weather Situation

A high pressure system positioned well south of the Bight is expected to pass over Tasmania on Friday. A low pressure trough near the WA border is forecast to move over SA during the weekend, reaching eastern districts late Saturday. A secondary low pressure trough is expected to move over from the west early next week, clearing to the east of the state late Monday.

Forecast for Friday until midnight

Winds
East to southeasterly 15 to 20 knots, reaching up to 25 knots north of Port MacDonnell in the evening.
Seas
Around 1 metre, increasing to 1 to 2 metres during the afternoon.
Swell
Southwesterly 2.5 to 3 metres.
Weather
Partly cloudy.

Saturday 22 November

Winds
Easterly 15 to 20 knots turning southeasterly in the morning.
Seas
1 to 1.5 metres, decreasing to 1 metre around midday, then increasing to 1 to 1.5 metres during the afternoon.
Swell
Southwesterly 1.5 to 2.5 metres.
Weather
Cloudy. 50% chance of showers. The chance of a thunderstorm north of Port MacDonnell in the evening.

Sunday 23 November

Winds
Southeasterly 15 to 20 knots turning easterly during the evening.
Seas
1 to 1.5 metres.
1st Swell
Southwesterly 1 to 1.5 metres, increasing to 1.5 to 2 metres south of Port MacDonnell.
2nd Swell
Southeasterly around 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

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 am CDT Friday.

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