Sydney Coastal Waters Forecast: Broken Bay to Port Hacking

View the current warnings for New South Wales

Forecast updated at 7:01 pm EST on Monday 4 May 2026.

Weather Situation

A cold front and its associated troughs are crossing the eastern areas of the state, bringing a west to southwesterly wind change in the wake while weakening. Winds will become southerly on Tuesday, then turn east to northeast midweek ahead of a strong cold front that will cross the state on Thursday. Strong west to southwesterly winds will follow in its wake, with potential gale force winds further south, as a low forms off the far South Coast between Thursday and Friday. Winds will then gradually ease later Friday through the weekend as these systems quickly head off to the Tasman Sea while a high-pressure system moves over the Bight and extends a ridge over the coastal waters.

Forecast for Monday until midnight

Winds
Northerly 15 to 20 knots turning northwesterly in the late evening.
Seas
1 to 1.5 metres.
Swell
Northeasterly 1 to 1.5 metres inshore, increasing to 1.5 to 2 metres offshore.
Weather
Cloudy. 80% chance of showers. The chance of a thunderstorm.

Tuesday 5 May

Winds
Northwesterly 15 to 20 knots shifting south to southwesterly 10 to 15 knots in the early afternoon.
Seas
1 to 1.5 metres, decreasing below 1 metre during the afternoon.
Swell
Northeasterly 2 metres, tending easterly 2 to 2.5 metres during the morning.
Weather
The chance of a thunderstorm offshore in the early morning. Sunny day.

Wednesday 6 May

Winds
Variable about 10 knots becoming northeasterly 10 to 15 knots in the evening then tending northerly 15 to 20 knots in the late evening.
Seas
Below 1 metre.
1st Swell
Southerly around 1 metre inshore, increasing to 1 to 2 metres offshore during the morning.
2nd Swell
Easterly 1.5 to 2 metres, decreasing to 1.5 metres during the morning.
Weather
Partly cloudy.

Thursday 7 May

Winds
North to northwesterly 15 to 20 knots turning westerly 20 to 30 knots during the morning.
Seas
1 to 1.5 metres, increasing to 2 to 3 metres during the afternoon or evening.
1st Swell
Southerly 1 to 1.5 metres, decreasing to around 1 metre during the morning.
2nd Swell
Easterly 1 to 1.5 metres, decreasing to around 1 metre during the afternoon or evening.
Weather
Partly cloudy. 70% chance of showers. The chance of a thunderstorm in the 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 10:00 pm EST Monday.

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