IDS11072
Australian Government Bureau of Meteorology
South Australia
Issued at 9:30 am CST on Saturday 19 September 2026
for the period until midnight CST Monday 21 September 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 centred over NSW extends a ridge over SA ahead of a cold front will approach from the west. The front moves across SA on Sunday. Another high pressure system will move eastwards across waters to the south during Monday then over Victoria on Tuesday.
Winds: Northerly 15 to 20 knots. Seas: 1 to 1.5 metres, decreasing to 1 metre during the afternoon. Swell: Southwesterly 1 to 1.5 metres. Weather: Sunny.
Winds: North to northwesterly 20 to 25 knots shifting southwesterly 15 to 25 knots early in the morning then tending southerly 10 to 15 knots in the evening. Seas: 1 to 2 metres, decreasing to 1 metre during the morning. Swell: Southwesterly 1 to 1.5 metres, increasing to 1.5 to 2.5 metres during the afternoon. Weather: Partly cloudy.
Winds: South to southeasterly 10 to 15 knots tending east to southeasterly during the morning. Seas: Around 1 metre. Swell: Southwesterly 2.5 to 3 metres. Weather: Partly cloudy.
Winds: Northerly 15 to 20 knots. Seas: Around 1 metre. Swell: Southwesterly 1 to 1.5 metres. Weather: Sunny.
Winds: Northerly 15 to 20 knots, reaching up to 25 knots south of Streaky Bay early in the morning. Winds shifting south to southwesterly during the day. Seas: 1 to 1.5 metres, decreasing below 1 metre during the morning, then increasing to 1 to 1.5 metres during the afternoon. Swell: Southwesterly 1 to 1.5 metres, increasing to 1.5 to 2 metres later in the evening. Weather: Becoming cloudy.
Winds: Southerly 10 to 15 knots turning southeasterly during the morning. Seas: Around 1 metre. Swell: Southwesterly 2 to 3 metres, increasing to 2 to 4 metres south of Streaky Bay. Weather: Partly cloudy.
Winds: Northerly 15 to 20 knots. Seas: 1 to 1.5 metres, decreasing to 1 metre by early evening. Swell: Southwesterly 1.5 metres. Weather: Sunny.
Winds: Northerly 15 to 25 knots shifting west to southwesterly 15 to 20 knots early in the morning then tending south to southwesterly in the late evening. Seas: 1 to 2 metres. Swell: Southwesterly 1.5 metres, increasing to 1.5 to 2.5 metres around midday. Weather: Becoming cloudy.
Winds: Southerly 15 to 20 knots turning east to southeasterly 10 to 15 knots during the day. Seas: 1 to 1.5 metres, decreasing to 1 metre during the afternoon. Swell: Southwesterly 2.5 to 3 metres, increasing to 3 to 4 metres during the morning. Weather: Cloudy.
Winds: North to northwesterly 15 to 20 knots. Seas: Around 1 metre, increasing to 1 to 1.5 metres in the west. Swell: Southwesterly 1.5 metres. Weather: Sunny.
Winds: Northerly 20 to 25 knots shifting southwesterly in the late afternoon. Seas: 1 to 2 metres. Swell: Southwesterly 1 to 2 metres, increasing to 2 to 3 metres in the west by early evening. Weather: Becoming cloudy.
Winds: Southerly 15 to 20 knots turning easterly 10 to 15 knots during the day. Seas: 1 to 1.5 metres, decreasing to 1 metre during the morning. Swell: Southwesterly 2.5 to 3 metres, increasing to 3 to 4 metres during the morning. Weather: Cloudy.
Winds: Northwesterly 15 to 20 knots turning northerly in the evening. Seas: 1 to 1.5 metres. Swell: Southwesterly 1.5 to 2 metres, decreasing to 1.5 metres during the afternoon. Weather: Sunny.
Winds: Northerly 15 to 25 knots, reaching up to 30 knots inshore during the morning. Winds shifting southwesterly 20 to 25 knots in the afternoon. Seas: 1 to 2 metres. Swell: Southwesterly 1.5 to 2 metres, increasing to 2 to 3 metres by early evening. Weather: Becoming cloudy.
Winds: Southeast to southwesterly 15 to 20 knots becoming southeasterly 10 to 15 knots during the morning then tending easterly during the evening. Seas: 1 to 2 metres, decreasing below 1 metre during the afternoon. Swell: Southwesterly 3 metres, increasing to 3 to 5 metres during the morning. Weather: Cloudy.
Winds: Northwesterly 10 to 15 knots, reaching up to 20 knots offshore in the late morning. Winds turning northerly in the evening. Seas: 1 to 1.5 metres, decreasing to 1 metre by early evening. Swell: Southwesterly 1.5 to 2 metres, decreasing to 1.5 metres later in the evening. Weather: Sunny.
Winds: Northerly 15 to 25 knots shifting west to southwesterly 20 to 25 knots in the early afternoon. Seas: Around 1 metre, increasing to 1 to 2 metres during the morning. Swell: Southwesterly 1.5 metres, increasing to 1.5 to 2.5 metres during the morning. Weather: Mostly sunny.
Winds: South to southwesterly 20 to 25 knots turning southeasterly 10 to 15 knots during the day. Seas: 1 to 2 metres, decreasing to 1 metre during the afternoon. Swell: Southwesterly 2.5 to 3 metres, increasing to 3 to 4 metres during the morning. Weather: Cloudy.
Winds: Northwesterly 15 to 20 knots turning northerly in the late evening. Seas: 1 to 1.5 metres. Swell: West to southwesterly 2 to 2.5 metres. Weather: Sunny.
Winds: North to northwesterly 15 to 25 knots, reaching up to 30 knots south of Beachport during the day. Winds turning west to southwesterly 20 to 25 knots in the early afternoon. Seas: 1 to 1.5 metres, increasing to 2 to 2.5 metres during the morning. Swell: Southwesterly 2 metres, increasing to 2 to 3 metres during the morning, then tending west to southwesterly 3 metres later in the evening. Weather: Partly cloudy. 50% chance of showers.
Winds: South to southwesterly 20 to 30 knots tending south to southeasterly below 10 knots during the morning. Seas: 1.5 to 2.5 metres, decreasing below 1 metre during the afternoon. Swell: Southwesterly 3 to 5 metres. Weather: Partly cloudy.
Winds: North to northeasterly 10 to 15 knots, reaching up to 20 knots south of Cowell to Wallaroo in the late evening. Seas: Below 1 metre. Swell: South to southwesterly around 1 metre. Weather: Sunny.
Winds: Northerly 15 to 25 knots shifting southwesterly 15 to 20 knots in the late morning. Seas: Around 1 metre, increasing to 1 to 2 metres during the morning. Swell: South to southwesterly around 1 metre. Weather: Partly cloudy.
Winds: South to southwesterly 15 to 20 knots turning southeasterly during the morning. Seas: 1 to 1.5 metres. Swell: South to southwesterly 1 to 1.5 metres, increasing to 1.5 to 2.5 metres during the morning. Weather: Cloudy.
Winds: Northerly 10 to 15 knots, reaching up to 20 knots south of Port Vincent to Brighton in the late evening. Seas: Below 1 metre. Swell: West to southwesterly below 0.5 metres. Weather: Sunny.
Winds: Northerly 15 to 25 knots shifting west to southwesterly 15 to 20 knots in the late morning and early afternoon. Seas: Around 1 metre, increasing to 1 to 2 metres during the morning, then decreasing to 1 to 1.5 metres around midday. Swell: West to southwesterly below 0.5 metres. Weather: Mostly sunny.
Winds: South to southwesterly 15 to 20 knots turning southeasterly 10 to 15 knots during the day. Seas: 1 to 1.5 metres, decreasing to 1 metre during the afternoon. Swell: South to southwesterly below 1 metre. Weather: Cloudy.
Winds: Northerly 15 to 20 knots. Seas: Below 1 metre. Swell: West to southwesterly below 1 metre. Weather: Sunny.
Winds: Northerly 15 to 25 knots shifting southwesterly 15 to 20 knots in the evening. Seas: 1 to 2 metres. Swell: West to southwesterly around 1 metre. Weather: Partly cloudy.
Winds: South to southwesterly 15 to 20 knots turning southeasterly 10 to 15 knots during the morning. Seas: 1 to 1.5 metres, decreasing to 1 metre during the morning. Swell: West to southwesterly 1 to 1.5 metres, increasing to 1 to 2 metres during the morning. Weather: Cloudy.
The next routine forecast will be issued at 3:30 pm CST Saturday.
* 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.