Illawarra Coastal Waters Forecast: Port Hacking to Ulladulla

View the current warnings for New South Wales

Forecast updated at 11:20 am EDT on Wednesday 4 March 2026.

Weather Situation

A slow moving high pressure system over the Tasman Sea extends a ridge to the state's east, maintaining fresh northeasterly airstream over coastal waters. The ridge is forecast to persist over the north coast through the week while a trough brushes the south coast early today then weakens. Then, another trough is expected to cross the southern half of the coast on Friday and stalls about the central part of the coast. This will be followed by the second high pressure system passing to the south, maintaining onshore easterly airstream later in the week.

Forecast for Wednesday until midnight

Winds
Northerly 15 to 20 knots, reaching up to 25 knots offshore during the afternoon and evening.
Seas
1 to 2 metres.
Swell
South to southeasterly around 1 metre.
Weather
Partly cloudy. 60% chance of showers. The chance of a thunderstorm in the afternoon and evening.

Thursday 5 March

Winds
Northwest to northeasterly 10 to 15 knots, reaching up to 25 knots offshore early in the morning. Winds tending east to northeasterly in the early afternoon then tending north to northeasterly in the late afternoon.
Seas
1 to 2 metres, decreasing to 1 metre during the morning, then increasing to 1 to 1.5 metres by early evening.
1st Swell
Northeasterly around 1 metre inshore, increasing to 1 to 1.5 metres offshore during the morning.
2nd Swell
Southerly around 1 metre.
Weather
The chance of a thunderstorm in the early morning. Mostly sunny afternoon.

Friday 6 March

Winds
Northerly 15 to 20 knots tending southeast to southwesterly 10 to 15 knots during the day then tending north to northeasterly during the afternoon.
Seas
1 to 1.5 metres, decreasing to 1 metre during the morning.
Swell
Northeasterly around 1 metre inshore, increasing to 1 to 1.5 metres offshore during the morning.
Weather
Partly cloudy. 50% chance of showers. The chance of a thunderstorm in the afternoon and evening.

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 Wednesday.

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