Australian Government

Bureau of Meteorology


Coastal Waters Forecast 

Marine (lite) Home

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 EDT on Sunday 18 January 2026
for the period until midnight EDT Tuesday 20 January 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

Strong southeasterly winds are expected along the NSW coast from a trough and embedded low pressure system pinned to the coast. The trough and low is forecast to track north and weaken during today. Then, a high pressure system will move into the south Tasman Sea, maintaining fresh to strong southeasterly winds over coastal waters in the new week.

Illawarra Coast: Port Hacking to Ulladulla

Forecast for Sunday 18 January until midnight

Strong Wind Warning for Sunday for Illawarra Coast

Winds: Southeasterly 15 to 25 knots, reaching up to 30 knots offshore north of Point Perpendicular during the morning. Seas: 1.5 to 2.5 metres. Swell: Easterly 2.5 to 3 metres. Weather: Partly cloudy. 70% chance of showers. The chance of a thunderstorm offshore north of Port Kembla early this morning.

Forecast for Monday 19 January

Winds: Southeasterly 15 to 20 knots. Seas: 1 to 2 metres, decreasing to 1 to 1.5 metres during the morning. Swell: Southeasterly 2 to 2.5 metres. Weather: Partly cloudy. 50% chance of showers. The chance of a thunderstorm offshore north of Point Perpendicular in the evening.

Forecast for Tuesday 20 January

Winds: Southeasterly 15 to 20 knots turning southerly 10 to 15 knots during the evening. Seas: Around 1 metre, increasing to 1 to 1.5 metres offshore north of Port Kembla. Swell: Southeasterly 2 metres, tending easterly 2 to 2.5 metres during the morning. Weather: Partly cloudy. 50% chance of showers. The chance of a thunderstorm in the evening.

Batemans Coast: Ulladulla to Montague Island

Forecast for Sunday 18 January until midnight

Winds: Southeasterly 15 to 20 knots, reaching up to 25 knots offshore north of Moruya Heads during the morning. Seas: 1 to 1.5 metres, increasing to 1.5 to 2 metres offshore. Swell: Easterly 2 to 2.5 metres. Weather: Partly cloudy. 50% chance of showers.

Forecast for Monday 19 January

Winds: Southeasterly 10 to 15 knots turning easterly in the evening. Winds reaching up to 20 knots offshore north of Moruya Heads early in the morning and again in the late evening. Seas: 1 to 1.5 metres, decreasing to 1 metre during the morning. Swell: Easterly 2 to 2.5 metres, tending southeasterly 2 metres around midday. Weather: Partly cloudy. 50% chance of showers.

Forecast for Tuesday 20 January

Winds: Easterly 10 to 15 knots turning southeasterly during the morning. Seas: Around 1 metre. Swell: Southeasterly 2 metres, tending easterly 1.5 to 2.5 metres during the morning. Weather: Partly cloudy.

Eden Coast: Montague Island to Gabo Island

Forecast for Sunday 18 January until midnight

Winds: Easterly 15 to 20 knots. Seas: 1 to 1.5 metres. Swell: Easterly 2 to 2.5 metres. Weather: Partly cloudy.

Forecast for Monday 19 January

Winds: Easterly 10 to 15 knots, reaching up to 20 knots offshore south of Green Cape early in the morning. Seas: 1 to 1.5 metres, decreasing to 1 metre during the morning. Swell: Easterly 2 to 2.5 metres, tending southeasterly 2 metres during the morning. Weather: Partly cloudy. 50% chance of showers.

Forecast for Tuesday 20 January

Winds: Easterly 10 to 15 knots turning southeasterly during the afternoon. Seas: Around 1 metre. Swell: Easterly 1.5 to 2.5 metres. Weather: Partly cloudy.

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

* 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.