View the current warnings for South Australia
Forecast issued at 9:30 am CDT on Thursday 11 December 2025.
Weather Situation
A ridge of high pressure persists over southern SA, before the high centre moves eastwards over the Tasman Sea late today. A trough of low pressure is expected to move eastwards across the SA waters on Friday. Another ridge of high pressure will move over the south during the weekend.
Forecast for Thursday until midnight
- Winds
- Southeasterly 15 to 20 knots, reaching up to 25 knots south of Beachport in the afternoon.
- Seas
- 1 to 1.5 metres, increasing to 1.5 to 2 metres south of Beachport during the afternoon.
- Swell
- Southwesterly 2 metres.
- Weather
- Sunny.
Friday 12 December
- Winds
- Easterly 10 to 15 knots becoming variable below 10 knots in the morning then becoming southerly 10 to 15 knots in the late afternoon. Winds reaching up to 20 knots offshore early in the morning and again in the late evening.
- Seas
- 1 to 1.5 metres, decreasing below 1 metre during the morning.
- Swell
- Southwesterly 1.5 to 2 metres, decreasing to 1.5 metres around midday.
- Weather
- Partly cloudy.
Saturday 13 December
- Winds
- Southerly 10 to 15 knots turning westerly 15 to 25 knots during the afternoon.
- Seas
- Around 1 metre, increasing to 1.5 metres south of Beachport during the evening.
- Swell
- Southwesterly around 1 metre, increasing to 1 to 2 metres during the morning.
- Weather
- Partly 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
- See detailed wind and wave forecasts on MetEye
- 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 3:30 pm CDT Thursday.
Product IDS11067