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

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
Westerly 10 to 15 knots, reaching up to 20 knots offshore in the late afternoon. Winds tending southwesterly in the late afternoon.
Seas
Around 1 metre.
Swell
Southwesterly 2.5 to 3 metres.
Weather
Partly cloudy. 70% chance of showers.

Sunday 26 July

Winds
West to southwesterly 10 to 15 knots turning northwesterly in the late morning. Winds reaching up to 20 knots offshore in the late evening.
Seas
Around 1 metre.
Swell
Southwesterly 2 to 2.5 metres.
Weather
Partly cloudy. 50% chance of showers.

Monday 27 July

Winds
North to northwesterly 15 to 25 knots increasing to 20 to 30 knots in the middle of the day then tending west to northwesterly 20 to 25 knots in the late evening.
Seas
1 to 1.5 metres, increasing to 1.5 to 2.5 metres around midday.
Swell
Southwesterly 2 to 2.5 metres, tending westerly 1.5 to 2 metres during the morning.
Weather
Partly cloudy. 80% chance of showers.

Tuesday 28 July

Winds
Westerly 20 to 25 knots turning southwesterly 15 to 25 knots during the morning.
Seas
1.5 to 2.5 metres.
Swell
Westerly 2 to 3 metres, tending southwesterly 3 to 4 metres during the afternoon or evening.
Weather
Cloudy. 80% 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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