IDN11013
Australian Government Bureau of Meteorology
New South Wales
Issued at 3:55 am EDT on Sunday 18 January 2026
for the period until midnight EDT Wednesday 21 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 Sunday. Then, a high pressure system will move into the south Tasman Sea, maintaining fresh to strong southeasterly winds over Sydney in the new week.
Winds: Southeasterly 20 to 30 knots decreasing to 15 to 25 knots in the morning. Seas: Below 0.5 metres. Weather: Cloudy. 90% chance of rain. The chance of a thunderstorm this morning.
Winds: Southeasterly 15 to 20 knots. Seas: Below 0.5 metres. Weather: Partly cloudy. 70% chance of showers.
Winds: Southeasterly 10 to 15 knots turning southerly 15 to 20 knots during the morning. Seas: Below 0.5 metres. Weather: Partly cloudy. 60% chance of showers.
Winds: South to southwesterly 15 to 20 knots decreasing to below 10 knots during the evening. Seas: Below 0.5 metres. Weather: Partly cloudy.
The next routine forecast will be issued at 10:00 am EDT Sunday.
* Calls to 1300 number cost around 27.5c inc. GST, higher from mobiles or public phones. Marine forecasts are also available on VHF and HF radio. View the radio schedule on www.bom.gov.au/marine
Check the latest Coastal Waters Forecast or Local Waters Forecast at http://www.bom.gov.au/nsw/forecasts/map.shtml for information on wind, wave and weather conditions for these coastal zones.