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 4:05 pm EDT on Tuesday 18 November 2025
for the period until midnight EDT Friday 21 November 2025.

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

Fresh northeasterly winds are developing along the coast as a ridge over the state contracts to the Tasman Sea and a high pressure system forms within it. Then, a trough will enter the south coast on Wednesday and brush the southern and central coasts on Thursday, bringing a south to southeasterly wind change in its wake, before stalling about Hunter or Mid North Coast on Friday.

Illawarra Coast: Port Hacking to Ulladulla

Forecast for Tuesday 18 November until midnight

Winds: Northeasterly 15 to 20 knots turning northerly in the late evening. Seas: 1 to 1.5 metres. Swell: Southerly around 1 metre. Weather: Clear.

Forecast for Wednesday 19 November

Winds: North to northeasterly 15 to 20 knots, reaching up to 25 knots offshore north of Port Kembla in the evening. Seas: 1 to 1.5 metres, decreasing to 1 metre during the morning, increasing to 1 to 1.5 metres north of Point Perpendicular during the afternoon. 1st Swell: Southerly around 1 metre. 2nd Swell: East to northeasterly around 1 metre. Weather: Sunny.

Forecast for Thursday 20 November

Winds: Southwesterly 15 to 20 knots turning southerly during the morning. Seas: 1 to 1.5 metres, decreasing to 1 metre during the morning. 1st Swell: Northeasterly 1 to 2 metres, decreasing to 1 to 1.5 metres during the morning. 2nd Swell: Southerly around 1 metre. Weather: Cloudy. 50% chance of showers in the afternoon and evening. The chance of a thunderstorm in the afternoon and early evening.

Forecast for Friday 21 November

Winds: South to southeasterly 15 to 20 knots turning easterly 10 to 15 knots during the evening. Seas: 1 to 1.5 metres, decreasing to 1 metre during the afternoon. 1st Swell: Southerly around 1 metre, increasing to 1 to 1.5 metres during the afternoon. 2nd Swell: Northeasterly around 1 metre. Weather: Cloudy. 50% chance of showers.

Batemans Coast: Ulladulla to Montague Island

Forecast for Tuesday 18 November until midnight

Winds: Northeasterly 15 to 20 knots, reaching up to 25 knots inshore in the evening. Seas: 1 to 1.5 metres, increasing to 1 to 2 metres inshore. Swell: Southerly around 1 metre. Weather: Clear.

Forecast for Wednesday 19 November

Winds: North to northwesterly 15 to 20 knots tending north to northeasterly in the morning then tending southeast to southwesterly 10 to 15 knots in the late evening. Seas: 1 to 1.5 metres, decreasing to 1 metre during the morning. 1st Swell: Southerly around 1 metre. 2nd Swell: Northeasterly around 1 metre. Weather: Sunny.

Forecast for Thursday 20 November

Winds: Southerly 15 to 25 knots. Seas: Around 1 metre, increasing to 1 to 1.5 metres during the afternoon. Swell: Northeasterly around 1 metre inshore, increasing to 1 to 1.5 metres offshore during the morning. Weather: Cloudy. 60% chance of showers. The chance of a thunderstorm in the afternoon.

Forecast for Friday 21 November

Winds: South to southeasterly 15 to 20 knots turning easterly 10 to 15 knots during the afternoon. Seas: 1 to 1.5 metres, decreasing below 1 metre during the morning. 1st Swell: Southerly around 1 metre. 2nd Swell: Northeasterly around 1 metre. Weather: Cloudy.

Eden Coast: Montague Island to Gabo Island

Forecast for Tuesday 18 November until midnight

Winds: East to northeasterly 10 to 15 knots. Seas: Below 1 metre. Swell: South to southwesterly around 1 metre inshore, increasing to 1 to 2 metres offshore. Weather: Clear.

Forecast for Wednesday 19 November

Winds: Northwest to northeasterly 10 to 15 knots tending northwest to southwesterly in the early morning then tending south to southeasterly in the morning. Winds reaching up to 20 knots north of Green Cape in the evening. Seas: Around 1 metre. Swell: Southerly 1 to 1.5 metres inshore, increasing to 1 to 2 metres offshore south of Green Cape. Weather: Mostly sunny.

Forecast for Thursday 20 November

Winds: South to southeasterly 15 to 25 knots. Seas: Around 1 metre, increasing to 1.5 to 2 metres during the afternoon. 1st Swell: Southerly around 1 metre. 2nd Swell: Northeasterly around 1 metre. Weather: Cloudy. 60% chance of showers.

Forecast for Friday 21 November

Winds: Southerly 15 to 20 knots becoming variable about 10 knots during the morning. Seas: 1 to 1.5 metres, decreasing below 1 metre during the morning. 1st Swell: Southerly around 1 metre. 2nd Swell: Northeasterly around 1 metre. Weather: Partly cloudy.

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