Illawarra Coastal Waters Forecast: Port Hacking to Ulladulla

View the current warnings for New South Wales

Forecast issued at 10:00 am EDT on Monday 17 November 2025.

Weather Situation

A trough will move through southern parts this morning, followed by a ridge developing in its wake. Fresh northerly winds will develop later Tuesday as the ridge extends to the Tasman Sea and a high pressure system forms within it. Then, the next trough brushing the southern and central parts of the coast mid to late this week will bring another south to southeasterly wind change in its wake.

Forecast for Monday until midnight

Strong Wind Warning for Monday for Illawarra Coast

Winds
West to southwesterly 15 to 20 knots, reaching up to 30 knots offshore in the late morning. Winds turning south to southeasterly 10 to 15 knots in the early afternoon.
Seas
1.5 to 2.5 metres, decreasing to 1 metre during the afternoon.
Swell
Southerly below 1 metre, increasing to 1 to 2 metres during the afternoon.
Weather
Partly cloudy.

Tuesday 18 November

Winds
Variable about 10 knots becoming west to northwesterly 10 to 15 knots before dawn then turning north to northeasterly 15 to 20 knots in the late morning.
Seas
Below 1 metre, increasing to 1 to 1.5 metres during the afternoon.
Swell
Southerly 1.5 to 2 metres, decreasing to 1 to 1.5 metres during the morning, then decreasing to around 1 metre around midday.
Weather
Sunny.

Wednesday 19 November

Winds
North to northeasterly 15 to 25 knots.
Seas
1 to 1.5 metres.
Swell
East to northeasterly around 1 metre.
Weather
Sunny.

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.

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The next routine forecast will be issued at 4:05 pm EDT Monday.

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