Adelaide Metropolitan Waters Forecast: St Kilda to Sellicks Beach, within 3.5 nm of the coast

View the current warnings for South Australia

Forecast issued at 9:30 am CDT on Saturday 17 January 2026.

Weather Situation

A ridge of high pressure lies over waters south of the Bight. The high centre will move eastwards to be south of Tasmania late this evening then over the southern Tasman Sea later over the weekend. On Sunday a trough will begin to move in from the west and will reach central districts in the evening then over the northeast early next week. Another high will develop over waters south of the Bight mid next week and will extend a ridge northwards over western SA.

Forecast for Saturday until midnight

Winds
Variable about 10 knots becoming southwesterly 15 to 20 knots in the middle of the day then turning south to southeasterly in the late afternoon.
Seas
Below 1 metre, increasing to 1 to 1.5 metres by early evening, then decreasing below 1 metre later in the evening.
Swell
West to southwesterly below 0.5 metres.
Weather
Sunny.

Sunday 18 January

Winds
Variable about 10 knots becoming south to southwesterly 10 to 15 knots in the middle of the day then turning east to southeasterly below 10 knots in the evening.
Seas
Below 1 metre.
Swell
Westerly below 0.5 metres.
Weather
Mostly sunny.

Monday 19 January

Winds
Southeast to southwesterly 10 to 15 knots becoming southwesterly 15 to 25 knots during the morning then tending southerly during the evening.
Seas
Below 1 metre, increasing to 1 to 2 metres during the afternoon.
Swell
West to southwesterly below 0.5 metres.
Weather
Sunny.

Tuesday 20 January

Winds
Southerly 15 to 25 knots.
Seas
1 to 1.5 metres, increasing to 1 to 2 metres during the afternoon or evening.
Swell
West to southwesterly below 0.5 metres.
Weather
Partly cloudy.

Please be awareWind 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.

The next routine forecast will be issued at 3:30 pm CDT Saturday.

Product IDS10035