Upper South East Coastal Waters Forecast: Murray Mouth to Cape Jaffa

View the current warnings for South Australia

Forecast issued at 3:40 am CDT on Sunday 22 February 2026.

Weather Situation

A trough and cold front will move across the south today. A tropical low pressure system centred over the southeast of the NT extends a trough into the northeast of SA. The low and trough are expected to remain slow-moving next week and another ridge will extend across waters to the south of SA.

Forecast for Sunday until midnight

Winds
Westerly 10 to 15 knots turning southerly 15 to 25 knots in the middle of the day.
Seas
Below 1 metre, increasing to 1 to 2 metres during the afternoon.
Swell
Southwesterly 1.5 to 2 metres, decreasing to 1.5 metres around midday, then increasing to 1.5 to 2.5 metres during the afternoon.
Weather
Cloudy. 70% chance of showers during the morning and afternoon. The chance of a thunderstorm in the morning and early afternoon.

Monday 23 February

Winds
South to southeasterly 15 to 20 knots.
Seas
1 to 1.5 metres, decreasing to 1 metre during the morning, then increasing to 1 to 1.5 metres by early evening.
Swell
Southwesterly 2.5 to 3 metres, increasing to 3 to 4 metres around midday.
Weather
Mostly sunny.

Tuesday 24 February

Winds
South to southeasterly 15 to 25 knots.
Seas
Around 1 metre, increasing to 1.5 to 2 metres during the afternoon or evening.
Swell
Southwesterly 3 to 4 metres, decreasing to 3 metres during the morning.
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 Sunday.

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