IDS10035
Australian Government Bureau of Meteorology
South Australia
Issued at 9:30 am CST on Wednesday 20 May 2026
for the period until midnight CST Saturday 23 May 2026.
Please be aware
Wind 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.
A high pressure system over SA will remain dominant as it slowly moves east and into the Tasman Sea on Friday. A cold front will moves across the Bight on Saturday.
Winds: Southwesterly 10 to 15 knots becoming variable below 10 knots in the early afternoon. Seas: Below 1 metre. Swell: West to southwesterly below 0.5 metres. Weather: Partly cloudy.
Winds: Variable below 10 knots. Seas: Below 0.5 metres. Swell: West to southwesterly below 0.5 metres. Weather: Partly cloudy.
Winds: North to northeasterly about 10 knots. Seas: Below 1 metre. Swell: West to southwesterly below 0.5 metres. Weather: Becoming cloudy.
Winds: Northeasterly 10 to 15 knots turning northerly during the morning. Seas: Below 1 metre. Swell: West to southwesterly below 0.5 metres. Weather: Partly cloudy.
The next routine forecast will be issued at 3:30 pm CST Wednesday.
* Calls to 1300 number cost around 27.5c inc. GST, higher from mobiles or public phones. Marine forecasts are also available on VHF and HF radio. View the radio schedule on www.bom.gov.au/marine
Check the latest Coastal Waters Forecast or Local Waters Forecast at http://www.bom.gov.au/sa/forecasts/map.shtml for information on wind, wave and weather conditions for these coastal zones.