Coastal Waters Forecast 

IDS10035

Australian Government Bureau of Meteorology
South Australia

Local Waters Forecast for Adelaide Metropolitan Waters

Issued at 3:30 pm CST on Monday 20 July 2026
for the period until midnight CST Friday 24 July 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.

Warning Information

Weather Situation

A high pressure system over Victoria extends a ridge over South Australia, with the ridge expected to weaken during Tuesday. A trough will develop in the west on Tuesday, ahead of a weak cold front that is expected to extend over southern parts during Wednesday. Another ridge will extend over the west of the state later Wednesday, with a high centre expected to build over the Bight Thursday and Friday.

Forecast for Monday 20 July until midnight

Winds: North to northeasterly below 10 knots. Seas: Below 1 metre. Swell: West to southwesterly below 1 metre. Weather: Partly cloudy.

Forecast for Tuesday 21 July

Winds: Northeasterly below 10 knots becoming north to northwesterly in the morning. Seas: Below 1 metre. Swell: West to southwesterly below 1 metre. Weather: Partly cloudy.

Forecast for Wednesday 22 July

Winds: Northwesterly 10 to 15 knots turning southwesterly in the middle of the day. Seas: Around 1 metre. Swell: West to southwesterly below 0.5 metres. Weather: Partly cloudy. 95% chance of showers.

Forecast for Thursday 23 July

Winds: South to southwesterly 10 to 15 knots decreasing to about 10 knots during the evening. Seas: Below 1 metre. Swell: West to southwesterly below 0.5 metres. Weather: Partly cloudy. 70% chance of showers.

Forecast for Friday 24 July

Winds: Variable about 10 knots. Seas: Below 1 metre. Swell: West to southwesterly below 0.5 metres. Weather: Cloudy.

The next routine forecast will be issued at 9:30 pm CST Monday.

* 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.