IDN11002
Australian Government Bureau of Meteorology
New South Wales
Issued at 11:26 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.
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.
Winds: East to northeasterly about 10 knots. Seas: Below 1 metre. Swell: Southerly around 1 metre. Weather: Mostly clear.
Winds: Northeasterly about 10 knots increasing to 10 to 15 knots in the morning. Winds reaching up to 20 knots south of Cape Byron during the afternoon and evening. Seas: Below 1 metre, increasing to 1 to 1.5 metres south of Cape Byron during the afternoon. Swell: Southerly around 1 metre. Weather: Partly cloudy.
Winds: Northerly 15 to 20 knots. Seas: Around 1 metre, increasing to 1 to 1.5 metres south of Cape Byron. Swell: Southerly below 1 metre. Weather: Mostly sunny morning. The chance of a thunderstorm south of Cape Byron in the afternoon and evening.
Winds: Northerly 15 to 20 knots turning east to northeasterly 10 to 15 knots during the morning. Seas: 1 to 1.5 metres, decreasing below 1 metre during the morning. Swell: Easterly around 1 metre. Weather: Mostly sunny morning. The chance of a thunderstorm in the afternoon and evening.
Winds: North to northeasterly 10 to 15 knots. Seas: Below 1 metre. Swell: Southerly around 1 metre inshore, increasing to 1.5 metres offshore. Weather: Mostly clear.
Winds: North to northeasterly 15 to 25 knots. Seas: Around 1 metre, increasing to 1 to 2 metres during the morning. Swell: Southerly 1 to 1.5 metres, decreasing to around 1 metre during the morning. Weather: Partly cloudy.
Winds: Northerly 15 to 25 knots. Seas: 1.5 to 2 metres. Swell: Southerly around 1 metre. Weather: Mostly sunny morning. The chance of a thunderstorm in the afternoon and evening.
Winds: North to northwesterly 15 to 20 knots tending southeast to southwesterly 10 to 15 knots during the morning then tending northeast to southeasterly during the afternoon. Seas: 1 to 1.5 metres, decreasing to 1 metre during the morning. 1st Swell: Southerly around 1 metre. 2nd Swell: Easterly around 1 metre. Weather: Partly cloudy. 50% chance of showers. The chance of a thunderstorm in the afternoon and evening.
Winds: Northerly 10 to 15 knots, reaching up to 20 knots offshore south of Crowdy Head. Seas: Around 1 metre. Swell: Southerly 1 to 1.5 metres. Weather: Clear.
Winds: Northerly 15 to 25 knots, reaching up to 30 knots offshore south of Crowdy Head in the late evening. Seas: Around 1 metre, increasing to 1 to 2 metres during the morning. Swell: Southerly 1 to 1.5 metres, decreasing to around 1 metre during the morning. Weather: Mostly sunny.
Winds: Northerly 20 to 30 knots decreasing to 15 to 25 knots in the early morning. Seas: 1.5 to 2.5 metres. 1st Swell: Southerly around 1 metre. 2nd Swell: East to northeasterly around 1 metre. Weather: Mostly sunny morning. The chance of a thunderstorm in the afternoon and evening.
Winds: Northwest to northeasterly 15 to 20 knots tending southeast to southwesterly during the morning then tending northeast to southeasterly 10 to 15 knots during the afternoon. Seas: 1 to 1.5 metres, decreasing to 1 metre during the morning. 1st Swell: Southerly around 1 metre, increasing to 1 to 2 metres during the afternoon. 2nd Swell: East to northeasterly around 1 metre inshore, increasing to 1 to 1.5 metres offshore south of Crowdy Head. Weather: Cloudy. 60% chance of showers. The chance of a thunderstorm.
Winds: North to northeasterly 15 to 20 knots. Seas: Around 1 metre, increasing to 1 to 1.5 metres south of Port Stephens. Swell: Southerly around 1 metre inshore, increasing to 1 to 1.5 metres offshore north of Port Stephens. Weather: Clear.
Winds: Northerly 15 to 25 knots, reaching up to 30 knots in the evening. Seas: 1 to 2 metres. Swell: Southerly around 1 metre. Weather: Sunny.
Winds: Northerly 20 to 30 knots tending northwest to northeasterly 15 to 25 knots in the early morning then tending south to southeasterly 15 to 20 knots in the evening. Seas: 1.5 to 2.5 metres, decreasing to 1 to 1.5 metres during the morning. 1st Swell: Northeasterly around 1 metre inshore, increasing to 1 to 1.5 metres offshore south of Port Stephens during the morning. 2nd Swell: Southerly around 1 metre. Weather: Partly cloudy. The chance of a thunderstorm in the afternoon and evening.
Winds: Southerly 15 to 20 knots turning southeasterly during the morning. Seas: Below 1 metre, increasing to 1 to 1.5 metres during the morning. 1st Swell: Southerly around 1 metre, increasing to 1 to 2 metres during the morning. 2nd Swell: Northeasterly 1 to 1.5 metres, tending easterly below 1 metre during the afternoon or evening. Weather: Cloudy. 60% chance of showers. The chance of a thunderstorm.
The next routine forecast will be issued at 4:00 am EDT Wednesday.
* 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.