View the current warnings for South Australia
Forecast issued at 3:50 pm CDT on Sunday 16 December 2018.
Weather Situation
A low near Tasmania will move southeastwards to be over the southern Tasman Sea on Monday, with a weak high pressure ridge to follow over South Australia. Another low and associated trough will develop in the far west of the State late Monday or early Tuesday, and then move eastwards, with this low reaching the eastern States later Wednesday, followed by a ridge of high pressure developing to the south of the Bight. A strong high pressure system will develop south of the Bight late in the week.
Forecast for Sunday until midnight
- Winds
- South to southeasterly 15 to 20 knots inshore in the evening.
- Seas
- Below 1 metre, increasing to 1 to 1.5 metres by early evening.
- 1st Swell
- Southwesterly 2 metres.
- 2nd Swell
- South to southeasterly around 1 metre.
- Weather
- Mostly clear.
Monday 17 December
- Winds
- East to southeasterly 15 to 20 knots, increasing to 20 to 25 knots late afternoon.
- Seas
- 1 to 1.5 metres, increasing to 1.5 to 2 metres by early evening.
- Swell
- Southwesterly 1.5 to 2 metres, decreasing to 1.5 metres during the afternoon.
- Weather
- Partly cloudy. The chance of a thunderstorm in the late afternoon and evening.
Tuesday 18 December
- Winds
- Easterly 20 to 30 knots decreasing to 15 to 20 knots before dawn then shifting west to southwesterly in the afternoon.
- Seas
- 1 to 2 metres, decreasing to 1 to 1.5 metres during the morning.
- 1st Swell
- Southwesterly 1.5 to 2 metres, decreasing to 1 to 1.5 metres during the morning, then decreasing to around 1 metre by early evening.
- 2nd Swell
- South to southeasterly around 1 metre.
- Weather
- Cloudy. 60% chance of showers. The chance of a thunderstorm.
Wednesday 19 December
- Winds
- Westerly 15 to 20 knots turning southwesterly during the afternoon.
- Seas
- 1 to 1.5 metres, increasing to 1.5 to 2 metres during the morning.
- 1st Swell
- Southwesterly around 1 metre, increasing to 1 to 1.5 metres south of Streaky Bay during the afternoon or evening.
- 2nd Swell
- South to southeasterly around 1 metre.
- Weather
- Cloudy.
Please be awareWind gusts can be 40 percent stronger than the averages given here, and maximum waves may be up to twice the height. Wind warnings are issued for today and tomorrow and describe the highest category of wind warning for that day.
Nearby Coastal Waters
- This forecast is also available via scheduled broadcasts on marine radio.
- Latest Coastal Observations
- Tide Predictions
- Marine Knowledge Centre - explanations and definitions
The next routine forecast will be issued at 5:10 am CDT Monday.
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