IDS11072
Australian Government Bureau of Meteorology
South Australia
Issued at 3:40 am CDT on Tuesday 18 November 2025
for the period until midnight CDT Thursday 20 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 ridge of high pressure lies over the north and west directing a broad southwest to southerly flow across SA waters. Troughs are forecast to pass over the southeast today and Wednesday. The flow will turn south to southeasterly through the week as the ridge moves southeast on Thursday to be south of the state on Friday.
Winds: Variable below 10 knots becoming west to southwesterly 10 to 15 knots in the middle of the day then turning southerly in the early afternoon. Seas: Below 0.5 metres, increasing to around 1 metre during the afternoon. Swell: Southwesterly 2 to 2.5 metres. Weather: Partly cloudy.
Winds: South to southeasterly about 10 knots increasing to 15 to 20 knots in the early afternoon. Seas: Below 1 metre, decreasing below 0.5 metres around midday, then increasing to around 1 metre during the afternoon. Swell: Southwesterly 2 metres. Weather: Partly cloudy.
Winds: East to southeasterly 15 to 25 knots. Seas: 1 to 1.5 metres, increasing to 1.5 to 2 metres during the afternoon or evening. Swell: Southwesterly 2 to 2.5 metres, tending southerly 2 to 3 metres during the morning. Weather: Cloudy. The chance of a thunderstorm in the evening.
Winds: Variable about 10 knots becoming west to southwesterly 10 to 15 knots in the morning then tending south to southwesterly in the late afternoon. Seas: Below 1 metre. Swell: Southwesterly 2 to 2.5 metres. Weather: Cloudy.
Winds: Southerly below 10 knots increasing to 10 to 15 knots in the middle of the day. Seas: Below 0.5 metres, increasing to around 1 metre during the afternoon. Swell: Southwesterly 2 to 2.5 metres. Weather: Cloudy.
Winds: Southeasterly 15 to 25 knots. Seas: Around 1 metre, increasing to 1 to 2 metres during the evening. Swell: Southwesterly 2 to 3 metres. Weather: Partly cloudy.
Winds: Westerly 15 to 20 knots turning southwesterly 10 to 15 knots in the early afternoon. Seas: Around 1 metre. Swell: Southwesterly 2 to 2.5 metres. Weather: Cloudy.
Winds: Southwesterly 10 to 15 knots turning southerly in the late afternoon. Seas: Around 1 metre. Swell: Southwesterly 2 to 2.5 metres. Weather: Cloudy.
Winds: Southerly 10 to 15 knots turning southeasterly 15 to 25 knots during the morning. Seas: Below 1 metre, increasing to 1 to 2 metres during the afternoon or evening. Swell: Southwesterly 2.5 to 3 metres. Weather: Partly cloudy.
Winds: Westerly 15 to 20 knots turning southwesterly in the late afternoon. Seas: Below 1 metre, increasing to 1 to 1.5 metres during the morning, then decreasing below 1 metre later in the evening. Swell: Southwesterly 2.5 to 3 metres. Weather: Cloudy.
Winds: Southwesterly 10 to 15 knots turning southerly in the late evening. Seas: Around 1 metre. Swell: Southwesterly 2.5 to 3 metres. Weather: Cloudy.
Winds: Southerly 10 to 15 knots turning southeasterly 15 to 20 knots during the morning. Seas: Around 1 metre, increasing to 1.5 metres in the west during the evening. Swell: Southwesterly 3 metres, increasing to 3 to 4 metres during the morning. Weather: Cloudy.
Winds: Westerly 15 to 20 knots turning southwesterly in the evening. Seas: 1 to 1.5 metres, decreasing to 1 metre later in the evening. Swell: Southwesterly 2.5 to 3 metres. Weather: Cloudy.
Winds: Southwesterly 15 to 20 knots. Seas: Around 1 metre, increasing to 1 to 1.5 metres during the afternoon. Swell: Southwesterly 2.5 to 3 metres, increasing to 3 to 4 metres later in the evening. Weather: Cloudy.
Winds: South to southwesterly 10 to 15 knots turning southeasterly 15 to 20 knots during the day. Seas: Around 1 metre. Swell: Southwesterly 3 to 4 metres, decreasing to 3 metres during the evening. Weather: Cloudy.
Winds: Westerly 15 to 20 knots, reaching up to 25 knots offshore in the early afternoon. Winds turning southwesterly 10 to 15 knots in the evening. Seas: Around 1 metre, increasing to 1 to 1.5 metres during the morning. Swell: Southwesterly 2.5 to 3 metres. Weather: Cloudy. 50% chance of showers.
Winds: West to southwesterly 15 to 20 knots. Seas: Around 1 metre. Swell: Southwesterly 2.5 to 3 metres. Weather: Cloudy.
Winds: South to southwesterly 10 to 15 knots tending south to southeasterly 15 to 20 knots during the day. Seas: Around 1 metre, increasing to 1 to 1.5 metres during the evening. Swell: Southwesterly 3 metres, increasing to 3 to 4 metres during the morning. Weather: Partly cloudy.
Winds: Westerly 15 to 25 knots. Seas: 1 to 2 metres. Swell: Southwesterly 3 metres. Weather: Cloudy. 60% chance of showers.
Winds: Westerly 15 to 20 knots, reaching up to 25 knots south of Port MacDonnell in the afternoon. Winds turning southwesterly in the evening. Seas: Around 1 metre, increasing to 1 to 2 metres south of Beachport. Swell: Southwesterly 3 metres, increasing to 3 to 4 metres during the afternoon. Weather: Cloudy.
Winds: South to southwesterly 15 to 20 knots tending south to southeasterly 10 to 15 knots during the day. Seas: 1 to 1.5 metres, decreasing to 1 metre during the morning. Swell: Southwesterly 4 metres. Weather: Partly cloudy.
Winds: Westerly 10 to 15 knots turning south to southwesterly 15 to 20 knots in the early afternoon. Seas: Around 1 metre, increasing to 1 to 1.5 metres north of Cowell to Wallaroo by early evening. Swell: South to southwesterly below 1 metre, increasing to 1 to 1.5 metres south of Cowell to Wallaroo. Weather: Partly cloudy.
Winds: Southwesterly 10 to 15 knots turning southerly 15 to 20 knots in the early afternoon. Winds reaching up to 25 knots north of Cowell to Wallaroo during the afternoon and evening. Seas: Below 1 metre, increasing to 1 to 2 metres during the afternoon. Swell: South to southwesterly below 1 metre, increasing to 1 to 1.5 metres south of Cowell to Wallaroo. Weather: Partly cloudy.
Winds: Southerly 15 to 20 knots turning southeasterly 15 to 25 knots during the day. Seas: 1 to 1.5 metres, increasing to 1.5 to 2 metres north of Cowell to Wallaroo during the evening. Swell: South to southwesterly around 1 metre, increasing to 1 to 2 metres south of Cowell to Wallaroo. Weather: Partly cloudy.
Winds: Westerly 10 to 15 knots, reaching up to 20 knots south of Port Vincent to Brighton in the afternoon. Winds turning southwesterly in the early afternoon. Seas: Around 1 metre. Swell: South to southwesterly below 1 metre. Weather: Cloudy.
Winds: Southwesterly 10 to 15 knots turning southerly 15 to 20 knots in the early afternoon. Seas: Around 1 metre. Swell: West to southwesterly below 0.5 metres. Weather: Partly cloudy.
Winds: Southerly 15 to 20 knots turning southeasterly during the evening. Seas: Around 1 metre, increasing to 1 to 1.5 metres during the evening. Swell: West to southwesterly below 0.5 metres. Weather: Partly cloudy.
Winds: Westerly 15 to 20 knots turning southwesterly 10 to 15 knots in the evening. Seas: Around 1 metre, increasing to 1 to 1.5 metres around midday, then decreasing to 1 metre later in the evening. Swell: West to southwesterly 1 to 1.5 metres, decreasing to around 1 metre by early evening. Weather: Cloudy.
Winds: Southwesterly about 10 knots increasing to 15 to 20 knots in the morning. Seas: Below 1 metre, increasing to 1 to 1.5 metres during the afternoon. Swell: West to southwesterly around 1 metre. Weather: Partly cloudy.
Winds: South to southwesterly 10 to 15 knots tending south to southeasterly 15 to 20 knots during the morning. Seas: Around 1 metre, increasing to 1 to 1.5 metres inshore during the evening. Swell: West to southwesterly around 1 metre, increasing to 1 to 1.5 metres through the Backstairs Passage. Weather: Cloudy.
The next routine forecast will be issued at 9:30 am CDT Tuesday.
* Calls to 1300 numbers cost around 27.5c incl. 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 Forecasts for information on wind, wave and weather conditions for neighbouring coastal zones.