Sydney Coastal Waters Forecast: Broken Bay to Port Hacking

View the current warnings for New South Wales

Forecast issued at 4:05 pm 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, stalling 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
Northeasterly 15 to 20 knots, reaching up to 25 knots offshore during the afternoon and evening.
Seas
1 to 1.5 metres, increasing to 1.5 to 2 metres offshore.
Swell
Southerly below 1 metre.
Weather
Partly cloudy. The chance of a thunderstorm offshore.

Thursday 5 March

Winds
Northerly 15 to 20 knots, reaching up to 25 knots offshore early in the morning. Winds turning northeasterly in the early afternoon.
Seas
1.5 to 2 metres, decreasing to 1 to 1.5 metres during the morning.
Swell
Northeasterly around 1 metre.
Weather
Mostly sunny. The chance of a thunderstorm in the morning and afternoon.

Friday 6 March

Winds
Northerly 15 to 20 knots turning northeasterly 10 to 15 knots in the middle of the day.
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 around midday.
Weather
Sunny morning. The chance of a thunderstorm in the afternoon and evening.

Saturday 7 March

Winds
North to northeasterly 10 to 15 knots tending east to northeasterly during the afternoon.
Seas
Around 1 metre.
Swell
Northeasterly around 1 metre inshore, increasing to 1 to 1.5 metres offshore.
Weather
Partly cloudy. 80% chance of showers. The chance of a thunderstorm.

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.

Nearby Coastal Waters

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The next routine forecast will be issued at 10:00 pm EDT Wednesday.

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