IDN11002
Australian Government Bureau of Meteorology
New South Wales
Issued at 4:00 am EDT on Tuesday 18 November 2025
for the period until midnight EDT Thursday 20 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.
A ridge extends across the state from the west. Fresh northeasterly winds will develop later today as the ridge extends to the Tasman Sea and a high pressure system forms within it. The next trough will cross the southern and central parts of the coast midweek and will bring another south to southeasterly wind change in its wake, before stalling about Hunter or Mid North Coast later in the week.
Winds: Southeasterly 10 to 15 knots turning east to northeasterly during the afternoon and evening. Seas: Around 1 metre. Swell: Southerly around 1 metre inshore, increasing to 1 to 1.5 metres offshore south of Yamba during the morning. Weather: Partly cloudy.
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 in the afternoon and evening.
Winds: South to southeasterly 10 to 15 knots shifting northeasterly in the late afternoon. Seas: Below 1 metre. Swell: Southerly around 1 metre inshore, increasing to 1 to 1.5 metres offshore. Weather: Mostly sunny.
Winds: North to northeasterly 15 to 20 knots increasing to 15 to 25 knots in the middle of the day. Seas: Around 1 metre, increasing to 1 to 1.5 metres during the morning, then increasing to 1 to 2 metres around midday. 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 to 1.5 metres, increasing to 1.5 to 2 metres south of Coffs Harbour. Swell: Southerly around 1 metre. Weather: Mostly sunny morning. The chance of a thunderstorm in the afternoon and evening.
Winds: South to southwesterly 10 to 15 knots shifting north to northeasterly during the afternoon and evening. Winds reaching up to 20 knots offshore south of Crowdy Head in the late evening. Seas: Below 1 metre. Swell: Southerly 1 to 1.5 metres. Weather: Mostly sunny.
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 1.5 metres during the morning, then increasing to 1.5 to 2 metres around midday. Swell: Southerly 1 to 1.5 metres, decreasing to around 1 metre during the morning. Weather: Mostly sunny.
Winds: Northerly 20 to 30 knots. Seas: 1.5 to 2.5 metres. 1st Swell: Southerly around 1 metre. 2nd Swell: East to northeasterly around 1 metre. Weather: Sunny morning. The chance of a thunderstorm in the afternoon and evening.
Winds: West to southwesterly 10 to 15 knots becoming variable about 10 knots in the middle of the day then becoming northeasterly 15 to 20 knots in the early afternoon. Seas: Around 1 metre, increasing to 1 to 1.5 metres inshore by early evening. Swell: Southerly 1 to 1.5 metres. Weather: Sunny.
Winds: North to northeasterly 15 to 25 knots, reaching up to 30 knots in the late evening. Seas: 1 to 2 metres. Swell: Southerly around 1 metre. Weather: Sunny.
Winds: Northerly 20 to 30 knots shifting south to southeasterly 10 to 15 knots during the afternoon. 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: Mostly sunny morning. The chance of a thunderstorm in the afternoon and evening.
The next routine forecast will be issued at 10:00 am EDT Tuesday.
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Check the latest Coastal Waters Forecasts for information on wind, wave and weather conditions for neighbouring coastal zones.