Investigator Strait Coastal Waters Forecast

View the current warnings for South Australia

Forecast issued at 9:30 pm CST on Thursday 2 July 2026.

Weather Situation

A series of cold fronts will move across the southeast of the state today and tomorrow as a high pressure system starts to move into the Bight. The high will dominate the weather pattern over the weekend as it slowly moves east, reaching the Tasman Sea by Tuesday.

Forecast for Thursday until midnight

Strong Wind Warning for Thursday for Investigator Strait

Winds
Westerly 25 to 30 knots.
Seas
3 metres.
Swell
West to southwesterly 2 to 4 metres.
Weather
Partly cloudy.

Friday 3 July

Strong Wind Warning for Friday for Investigator Strait

Winds
Westerly 20 to 25 knots, reaching up to 30 knots early in the morning. Winds turning southwesterly 15 to 25 knots before dawn then decreasing to 10 to 15 knots in the middle of the day.
Seas
2 to 3 metres, decreasing to 1 to 2 metres during the morning, then decreasing below 1 metre by early evening.
Swell
West to southwesterly 2 to 4 metres, decreasing to 2 to 3 metres during the morning, then decreasing to 1 to 2 metres by early evening.
Weather
Cloudy.

Saturday 4 July

Winds
South to southwesterly below 10 knots tending southeasterly 10 to 15 knots in the early afternoon.
Seas
Below 1 metre.
Swell
West to southwesterly 1 to 1.5 metres, decreasing to around 1 metre around midday.
Weather
Cloudy.

Sunday 5 July

Winds
Southeasterly 10 to 15 knots turning easterly during the morning.
Seas
Below 1 metre.
Swell
West to southwesterly below 1 metre, increasing to 1.5 to 2.5 metres through the Backstairs Passage.
Weather
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 Friday.

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