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

View the current warnings for South Australia

Forecast issued at 3:30 pm CDT on Sunday 7 December 2025.

Weather Situation

A high pressure system over the eastern Bight will continue to move eastwards, to be centred over the Tasman Sea by Monday. A weak cold front clips the southeast late Monday, before another high pressure ridge develops south of the Bight on Tuesday. The high moves slowly eastwards to be centred over the Tasman Sea late Thursday.

Forecast for Sunday until midnight

Winds
West to northwesterly about 10 knots increasing to 10 to 15 knots in the late evening.
Seas
Below 1 metre.
Swell
Southwesterly 2.5 to 3 metres.
Weather
Mostly clear.

Monday 8 December

Winds
Northwesterly 15 to 20 knots turning west to southwesterly 10 to 15 knots during the afternoon and evening.
Seas
Below 1 metre, increasing to 1 to 1.5 metres during the morning.
Swell
Southwesterly 2 to 2.5 metres, tending westerly 2 metres during the morning, then tending west to southwesterly 2 to 2.5 metres around midday.
Weather
Mostly sunny.

Tuesday 9 December

Winds
South to southwesterly 10 to 15 knots turning southeasterly 15 to 20 knots during the day.
Seas
Around 1 metre, increasing to 1 to 1.5 metres by early evening.
Swell
Southwesterly 2 to 3 metres.
Weather
Mostly sunny.

Wednesday 10 December

Winds
Southeasterly 15 to 20 knots.
Seas
1 to 1.5 metres.
Swell
Southwesterly 2 to 3 metres.
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

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The next routine forecast will be issued at 9:30 pm CDT Sunday.

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