Investigator Strait Coastal Waters Forecast

View the current warnings for South Australia

Forecast issued at 3:30 pm CST on Saturday 25 July 2026.

Weather Situation

A strong high pressure system centred over the Bight will slowly drift east and weaken over the weekend. A cold front will move up through the Bight and over southern SA on Monday, with a new high pressure system moving into the Bight mid next week.

Forecast for Saturday until midnight

Winds
Southwesterly 10 to 15 knots decreasing to about 10 knots in the late evening.
Seas
Around 1 metre.
Swell
West to southwesterly below 1 metre.
Weather
Partly cloudy.

Sunday 26 July

Winds
West to southwesterly about 10 knots tending northwesterly 10 to 15 knots in the middle of the day.
Seas
Below 1 metre.
Swell
West to southwesterly around 1 metre.
Weather
Partly cloudy. 50% chance of showers.

Monday 27 July

Winds
Northerly 15 to 25 knots turning west to northwesterly 20 to 30 knots in the afternoon.
Seas
1 to 1.5 metres, increasing to 1.5 to 2.5 metres during the morning.
Swell
West to southwesterly 1 to 1.5 metres, increasing to 1 to 2 metres around midday, then tending westerly 1 to 2 metres during the afternoon.
Weather
Partly cloudy. 80% chance of showers.

Tuesday 28 July

Winds
West to southwesterly 15 to 20 knots tending south to southwesterly 10 to 15 knots during the day.
Seas
1 to 2 metres, decreasing to 1 metre during the afternoon.
Swell
Westerly 1.5 to 2.5 metres.
Weather
Cloudy. 60% 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

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The next routine forecast will be issued at 9:30 pm CST Saturday.

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