View the current warnings for New South Wales
Forecast updated at 8:49 pm EST on Wednesday 17 September 2025.
Weather Situation
A south to southwesterly wind change will continue to move along the NSW coast today as a trough and associated cold front move into the Tasman Sea. Winds will tend northerly again and strengthen from Thursday as a high pressure system drifts across the coastal waters. Winds will shift west to southwesterly again over the weekend as a stronger cold front moves over NSW coastal waters, with southwesterly winds persisting into early next week as a series of fronts brush the south of the state.
Forecast for Wednesday until midnight
- Winds
- Northerly 15 to 20 knots.
- Seas
- 1 to 1.5 metres.
- Swell
- East to northeasterly below 0.5 metres.
- Weather
- Clear.
Thursday 18 September
- Winds
- Northwesterly 15 to 20 knots shifting east to southeasterly in the early afternoon.
- Seas
- 1 to 1.5 metres.
- Swell
- North to northeasterly around 1 metre.
- Weather
- Partly cloudy.
Friday 19 September
- Winds
- Variable about 10 knots becoming northerly 15 to 25 knots in the middle of the day.
- Seas
- Below 1 metre, increasing to 1 to 1.5 metres during the afternoon.
- Swell
- Easterly 1 to 1.5 metres, decreasing to around 1 metre during the morning.
- Weather
- Mostly sunny. The chance of a thunderstorm south of Cape Byron.
Saturday 20 September
- Winds
- North to northwesterly 20 to 25 knots increasing to 30 knots before tending west to northwesterly 10 to 15 knots during the day.
- Seas
- 1.5 to 2.5 metres, decreasing to 1 to 1.5 metres during the evening.
- Swell
- Southerly below 1 metre.
- Weather
- Cloudy. 90% chance of showers. The chance of a thunderstorm.
Please be awareWind 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.
Nearby Coastal Waters
- See detailed wind and wave forecasts on MetEye
- This forecast is also available via scheduled broadcasts on marine radio.
- Latest Coastal Observations
- Tide Predictions
- Marine Knowledge Centre - explanations and definitions
The next routine forecast will be issued at 4:10 am EST Thursday.
Product IDN11005