Until the outcome of the 2025 federal election, the Australian Government is operating under caretaker conventions

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

View the current warnings for South Australia

Forecast issued at 3:50 pm CST on Wednesday 23 April 2025.

Weather Situation

A high pressure system lies east of Tasmania and maintains a ridge over South Australia. A low pressure system moving east across the Bight will weaken as it moves over land on Friday. A new ridge of high pressure will begin to build over the Bight from Saturday.

Forecast for Wednesday until midnight

Winds
South to southeasterly about 10 knots becoming easterly in the late evening.
Seas
Below 1 metre.
Swell
Southwesterly 2 to 2.5 metres.
Weather
Clear.

Thursday 24 April

Winds
North to northeasterly about 10 knots becoming east to southeasterly in the evening.
Seas
Below 1 metre.
Swell
Southwesterly 1.5 to 2 metres.
Weather
Mostly sunny.

Friday 25 April

Winds
East to southeasterly below 10 knots tending southerly 10 to 15 knots in the morning.
Seas
Below 1 metre.
Swell
Southwesterly 1.5 to 2 metres.
Weather
Cloudy.

Saturday 26 April

Winds
Southerly 15 to 20 knots.
Seas
Around 1 metre, increasing to 1 to 1.5 metres during the morning.
Swell
Southwesterly 2 to 3 metres inshore, increasing to 3 to 4 metres offshore during the morning.
Weather
Partly cloudy. 50% chance of showers.

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 5:10 am CST Thursday.

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