IDN11002
Australian Government Bureau of Meteorology
New South Wales
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.
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.
Winds: South to southwesterly 10 to 15 knots tending south to southeasterly during the morning and early afternoon. Winds reaching up to 20 knots south of Cape Byron during the day. Seas: Around 1 metre. 1st Swell: Southeasterly 1 to 2 metres. 2nd Swell: Southerly around 1 metre north of Yamba. Weather: Cloudy. 80% chance of showers. The chance of a thunderstorm in the morning and early afternoon.
Winds: Southeasterly 15 to 25 knots. Seas: 1 to 1.5 metres, increasing to 1 to 2 metres during the morning. 1st Swell: Southeasterly 1.5 to 2.5 metres. 2nd Swell: Southeasterly around 1 metre north of Yamba. Weather: Partly cloudy. 70% chance of showers.
Winds: Southeasterly 15 to 20 knots turning southerly 15 to 25 knots during the morning. Seas: 1.5 to 2 metres. Swell: Southeasterly 2 metres. Weather: Partly cloudy. 50% chance of showers.
Winds: Southerly 15 to 20 knots turning southeasterly in the early afternoon. Winds reaching up to 30 knots offshore south of Coffs Harbour in the evening. Seas: Around 1 metre, increasing to 1 to 2 metres around midday. Swell: Southeasterly 2 to 2.5 metres. Weather: Partly cloudy. 90% chance of showers. The chance of a thunderstorm during the morning and afternoon.
Winds: South to southeasterly 15 to 25 knots. Seas: 1.5 to 2 metres, decreasing to 1 to 1.5 metres during the morning, then increasing to 1.5 to 2 metres around midday. Swell: Southeasterly 2 to 2.5 metres. Weather: Partly cloudy. 80% chance of showers.
Winds: Southerly 15 to 25 knots. Seas: 1 to 1.5 metres, increasing to 1.5 to 2 metres during the morning. Swell: Southeasterly 2 to 2.5 metres. Weather: Partly cloudy. 60% chance of showers.
Winds: Southeasterly 15 to 20 knots, reaching up to 30 knots offshore in the late morning and afternoon. Seas: 1 to 1.5 metres, increasing to 1 to 2 metres during the morning. 1st Swell: Easterly 2.5 to 3 metres, tending southeasterly 2.5 to 3 metres during the morning. 2nd Swell: South to southwesterly around 1 metre. Weather: Cloudy. 90% chance of rain. A thunderstorm likely during the morning and afternoon.
Winds: Southeasterly 15 to 20 knots. Seas: 1 to 1.5 metres, increasing to 1 to 2 metres offshore. 1st Swell: Southeasterly 2 to 2.5 metres. 2nd Swell: South to southwesterly around 1 metre. Weather: Partly cloudy. 70% chance of showers. The chance of a thunderstorm in the early morning.
Winds: Southeasterly 10 to 15 knots turning southerly 15 to 20 knots during the morning. Seas: 1 to 1.5 metres, increasing to 1 to 2 metres inshore during the morning. 1st Swell: East to southeasterly 2 to 2.5 metres. 2nd Swell: South to southwesterly around 1 metre. Weather: Partly cloudy. 60% chance of showers.
Winds: Southeasterly 15 to 25 knots, reaching up to 30 knots during the morning and early afternoon. Seas: 1.5 to 2.5 metres. 1st Swell: Southeasterly 2.5 to 3 metres. 2nd Swell: South to southwesterly around 1 metre north of Norah Head. Weather: Cloudy. 90% chance of showers. A thunderstorm likely during the morning and afternoon. Caution: Large and powerful surf conditions are expected to be hazardous for coastal activities such as crossing bars by boat and rock fishing.
Winds: Southeasterly 15 to 20 knots. Seas: 1 to 2 metres, decreasing to 1 to 1.5 metres during the morning. 1st Swell: Southeasterly 2.5 to 3 metres, tending easterly 2 to 2.5 metres during the morning. 2nd Swell: South to southwesterly around 1 metre inshore, increasing to 1 to 1.5 metres offshore south of Port Stephens during the morning. Weather: Partly cloudy. 50% chance of showers. The chance of a thunderstorm offshore in the early morning.
Winds: Southeasterly 10 to 15 knots turning southerly 15 to 20 knots during the morning. Seas: Around 1 metre, increasing to 1 to 1.5 metres offshore during the afternoon or evening. 1st Swell: Easterly 1.5 to 2.5 metres. 2nd Swell: Southerly around 1 metre inshore, increasing to 1 to 1.5 metres offshore south of Port Stephens. Weather: Partly cloudy. 50% chance of showers. The chance of a thunderstorm in the evening.
The next routine forecast will be issued at 10:00 am EDT Sunday.
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Check the latest Coastal Waters Forecasts for information on wind, wave and weather conditions for neighbouring coastal zones.