Gulf St Vincent Coastal Waters Forecast

View the current warnings for South Australia

Forecast issued at 3:40 am CST on Sunday 19 April 2026.

Weather Situation

A high pressure system centred west of Tasmania extends a ridge over western Victoria. A cold front over the far west of SA will weaken as it moves eastwards over central and eastern parts this morning. The high will move eastwards to be centred southeast of Tasmania later today but will continue to extend a ridge over SA early next week. Another front will move across the south of SA late Tuesday and early Wednesday then another high will move across waters to the south during Wednesday.

Forecast for Sunday until midnight

Winds
Northerly 10 to 15 knots shifting southerly in the middle of the day.
Seas
Around 1 metre.
Swell
West to southwesterly below 0.5 metres.
Weather
50% chance of showers this morning. The chance of a thunderstorm this morning. Mostly sunny afternoon.

Monday 20 April

Winds
Southeasterly 10 to 15 knots turning easterly below 10 knots in the evening.
Seas
Around 1 metre.
Swell
South to southwesterly below 0.5 metres.
Weather
Cloud clearing.

Tuesday 21 April

Winds
Northeasterly 10 to 15 knots turning northerly during the morning.
Seas
Around 1 metre.
Swell
South to southwesterly below 0.5 metres.
Weather
Mostly 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

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 CST Sunday.

Product IDS11069