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
- Southwest to southerly 10 to 15 knots, turning south to southeasterly during the evening.
- Seas
- Around 1 metre.
- 1st Swell
- Southwesterly 2 to 2.5 metres.
- 2nd Swell
- Southerly around 1 metre.
- Weather
- Partly cloudy.
Monday 17 December
- Winds
- East to southeasterly 15 to 20 knots tending south to southeasterly in the middle of the day then tending east to southeasterly in the late afternoon. Winds reaching 20 to 25 knots offshore from 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 by early evening.
- Weather
- Partly cloudy. The chance of a thunderstorm offshore at night.
Tuesday 18 December
- Winds
- Easterly 20 to 25 knots decreasing to 15 to 20 knots early in the morning then 10 to 15 knots in the late evening.
- Seas
- 1 to 2 metres, decreasing to 1 to 1.5 metres later in the evening.
- 1st Swell
- Southwesterly 1.5 to 2 metres, decreasing to 1 to 1.5 metres during the morning.
- 2nd Swell
- South to southeasterly around 1 metre.
- Weather
- Cloudy. 60% chance of showers. The chance of a thunderstorm.
Wednesday 19 December
- Winds
- Northeast to southeasterly 10 to 15 knots tending west to northwesterly 15 to 20 knots during the morning then turning southwesterly during the afternoon.
- Seas
- Around 1 metre, increasing to 1 to 1.5 metres during the afternoon.
- 1st Swell
- Southwesterly around 1 metre inshore, increasing to 1 to 1.5 metres offshore.
- 2nd Swell
- Southeasterly around 1 metre.
- Weather
- Cloudy. The chance of a thunderstorm in the morning.
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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