Investigator Strait Coastal Waters Forecast

View the current warnings for South Australia

Forecast issued at 9:30 pm CST on Saturday 2 May 2026.

Weather Situation

A cold front over eastern districts will move to the east of SA overnight. The low pressure system associated with this front is expected to move slowly eastwards over waters to the south of the state and will extend a trough over southern parts of SA later Sunday and Monday. The low will then move over Bass Strait later Monday. A ridge will extend across SA from the west on Tuesday and a cold front will move across the south later Wednesday.

Forecast for Saturday until midnight

Strong Wind Warning for Saturday for Investigator Strait

Winds
Northwesterly 20 to 30 knots.
Seas
1.5 to 2.5 metres.
Swell
Westerly 2 to 3 metres.
Weather
Partly cloudy.

Sunday 3 May

Strong Wind Warning for Sunday for Investigator Strait

Winds
Northwesterly 25 to 30 knots turning westerly in the evening.
Seas
2 to 3 metres.
Swell
Westerly 2 to 3 metres, increasing to 2 to 4 metres during the morning, then tending west to southwesterly 2 to 3 metres later in the evening.
Weather
Cloudy. 95% chance of showers. The chance of a thunderstorm.

Monday 4 May

Winds
Westerly 25 to 30 knots decreasing to 15 to 25 knots before dawn then tending southwesterly 15 to 20 knots in the morning.
Seas
1.5 to 2.5 metres, decreasing to 1 to 1.5 metres during the morning.
Swell
West to southwesterly 1.5 to 2.5 metres, decreasing to 1 to 1.5 metres during the morning.
Weather
Partly cloudy. 90% chance of showers.

Tuesday 5 May

Winds
Southwesterly 10 to 15 knots decreasing to below 10 knots during the day.
Seas
Around 1 metre, decreasing below 0.5 metres during the afternoon or evening.
Swell
West to southwesterly around 1 metre, increasing to 1 to 1.5 metres through the Backstairs Passage.
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 3:40 am CST Sunday.

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