IDS10035
Australian Government Bureau of Meteorology
South Australia
Issued at 9:30 am CDT on Wednesday 19 November 2025
for the period until midnight CDT Saturday 22 November 2025.
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 southwest of Perth extends a ridge over SA directing a broad south to southwesterly flow across SA waters. The ridge will move southeast during the rest of the week as the high moves to a position well south of the Bight by Thursday night. The high and associated ridge is expected to pass over Tasmania on Friday allowing a trough to enter the far west of South Australia. The trough in the west is forecast to slowly move over the state during the weekend.
Winds: Southwesterly 10 to 15 knots tending southerly in the evening. Winds reaching up to 20 knots north of Grange in the evening. Seas: Around 1 metre. Swell: West to southwesterly below 0.5 metres. Weather: Partly cloudy.
Winds: Southerly 10 to 15 knots, reaching up to 20 knots north of Brighton during the afternoon and evening. Winds turning southeasterly in the evening. Seas: Below 1 metre, increasing to 1 to 1.5 metres north of Brighton during the afternoon. Swell: West to southwesterly below 0.5 metres. Weather: Partly cloudy.
Winds: East to southeasterly 15 to 20 knots. Seas: Below 1 metre. Swell: West to southwesterly below 0.5 metres. Weather: Partly cloudy.
Winds: Easterly 10 to 15 knots. Seas: Below 1 metre. Swell: West to southwesterly below 0.5 metres. Weather: Cloudy. 80% chance of showers. The chance of a thunderstorm in the afternoon.
The next routine forecast will be issued at 3:30 pm CDT 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.