Australian Government

Bureau of Meteorology


Coastal Waters Forecast 

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IDN11004

Australian Government Bureau of Meteorology
New South Wales

Coastal Waters Forecast for New South Wales
Southern Zones: Port Hacking to Gabo Island

Issued at 4:00 am EST on Tuesday 25 August 2026
for the period until midnight EST Thursday 27 August 2026.

Please be aware
Wind 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.

Warning Information

For latest warnings go to www.bom.gov.au, subscribe to RSS feeds, call 1300 659 210* or listen for warnings on relevant TV and radio broadcasts.

Weather Situation

A high pressure system over the Tasman Sea is extending a ridge over the coastal waters and maintaining northerly airstream. A trough is forecast to enter the far south coast late Tuesday before heading north and cross the rest of the coastal areas on Wednesday, bringing fresh south to southwesterly wind change in its wake. Winds will then ease later in the week as a new high pressure system enters the state's west and extends a ridge across the coastal waters.

Illawarra Coast: Port Hacking to Ulladulla

Forecast for Tuesday 25 August until midnight

Winds: Northerly 15 to 25 knots. Seas: 1 to 1.5 metres, increasing to 1.5 to 2 metres offshore north of Point Perpendicular. 1st Swell: Southerly around 1 metre. 2nd Swell: Northeasterly around 1 metre. Weather: Cloudy. 95% chance of showers.

Forecast for Wednesday 26 August

Winds: North to northwesterly 10 to 15 knots shifting southerly 15 to 20 knots early in the morning. Winds reaching up to 25 knots offshore south of Point Perpendicular in the early afternoon. Seas: 1 to 1.5 metres, increasing to 1.5 to 2 metres during the morning. 1st Swell: Southerly around 1 metre, increasing to 1.5 to 2.5 metres during the afternoon. 2nd Swell: Northeasterly around 1 metre inshore, increasing to 1 to 1.5 metres offshore during the morning. Weather: Cloudy. 70% chance of showers. The chance of a thunderstorm north of Port Kembla in the early morning.

Forecast for Thursday 27 August

Winds: Southerly 15 to 20 knots becoming variable about 10 knots during the afternoon. Seas: 1 to 1.5 metres, decreasing below 1 metre during the afternoon. Swell: Southerly 2 to 3 metres. Weather: Partly cloudy.

Batemans Coast: Ulladulla to Montague Island

Forecast for Tuesday 25 August until midnight

Winds: Northerly 15 to 25 knots tending northwesterly 15 to 20 knots in the late evening. Seas: 1 to 2 metres. 1st Swell: Southerly around 1 metre. 2nd Swell: Northeasterly around 1 metre. Weather: Cloudy. 90% chance of showers.

Forecast for Wednesday 26 August

Winds: Northwest to southwesterly 15 to 20 knots tending southerly before dawn. Winds reaching up to 25 knots offshore during the day. Seas: 1 to 1.5 metres, increasing to 1.5 to 2 metres during the morning. 1st Swell: Southerly around 1 metre, increasing to 2 to 3 metres around midday. 2nd Swell: Northeasterly 1 to 1.5 metres, decreasing to around 1 metre during the morning. Weather: Partly cloudy.

Forecast for Thursday 27 August

Winds: Southerly 15 to 25 knots tending southwesterly 10 to 15 knots during the morning then becoming variable about 10 knots during the day. Seas: 1 to 2 metres, decreasing below 1 metre during the afternoon. Swell: Southerly 2 to 3 metres. Weather: Partly cloudy.

Eden Coast: Montague Island to Gabo Island

Forecast for Tuesday 25 August until midnight

Strong Wind Warning for Tuesday for Eden Coast

Winds: Northerly 15 to 25 knots, reaching up to 30 knots offshore in the late morning and early afternoon. Winds shifting west to southwesterly 15 to 20 knots in the late evening. Seas: 1 to 1.5 metres, increasing to 1.5 to 2.5 metres during the morning. 1st Swell: Northeasterly below 1 metre, increasing to 1 to 1.5 metres south of Merimbula by early evening. 2nd Swell: Southerly around 1 metre. Weather: Cloudy. 90% chance of showers. The chance of a thunderstorm during this afternoon and evening.

Forecast for Wednesday 26 August

Strong Wind Warning for Wednesday for Eden Coast

Winds: Southwesterly 15 to 25 knots, reaching up to 30 knots during the day. Seas: 1.5 to 2.5 metres. 1st Swell: South to southwesterly 1 to 2 metres, increasing to 2 to 3 metres by early evening. 2nd Swell: Northeasterly 1 to 1.5 metres, decreasing to around 1 metre during the morning. Weather: Partly cloudy.

Forecast for Thursday 27 August

Winds: Southwesterly 15 to 25 knots becoming variable about 10 knots during the afternoon. Seas: 1 to 2 metres, decreasing to 1 metre during the afternoon. Swell: Southerly 2 to 3 metres. Weather: Partly cloudy.

The next routine forecast will be issued at 10:00 am EST Tuesday.

* Calls to 1300 numbers cost around 27.5c incl. GST, higher from mobiles or public phones.

Check the latest Coastal Waters Forecasts for information on wind, wave and weather conditions for neighbouring coastal zones.