Marine Weather Services (Lite) - Sydney Closed Waters Forecast

IDN11013

Australian Government Bureau of Meteorology
New South Wales

Updated Local Waters Forecast for Sydney Enclosed Waters

Issued at 4:34 am EDT on Thursday 11 December 2025
for the period until midnight EDT Sunday 14 December 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.

Warning Information

For latest warnings go to www.bom.gov.au, subscribe to RSS feeds, call 1300 659 210* or listen for warnings on relevant TV and radio broadcasts.

Weather Situation

Southerly winds persisting about Sydney Waters as a trough stalls off the Hunter and Sydney coast. Winds will tend east to northeasterly from today as a high pressure system gradually drifts into the Tasman Sea, with winds turning northerly over the weekend. The next southerly change is expected during Sunday and Monday.

Forecast for Thursday 11 December until midnight

Winds: Southerly 15 to 20 knots tending southeasterly in the early afternoon. Seas: Below 0.5 metres. Weather: Cloudy. 60% chance of showers. The chance of a thunderstorm.

Forecast for Friday 12 December

Winds: East to southeasterly 10 to 15 knots turning northeasterly during the afternoon and evening. Seas: Below 0.5 metres. Weather: Cloudy. 90% chance of showers. The chance of a thunderstorm in the afternoon.

Forecast for Saturday 13 December

Winds: North to northwesterly below 10 knots tending northeasterly 15 to 20 knots during the day then becoming variable about 10 knots during the evening. Seas: Below 0.5 metres. Weather: Mostly sunny morning. The chance of a thunderstorm in the afternoon and evening.

Forecast for Sunday 14 December

Winds: North to northwesterly below 10 knots tending north to northeasterly 15 to 20 knots during the day then shifting south to southwesterly during the evening. Seas: Below 0.5 metres. Weather: Mostly sunny morning. The chance of a thunderstorm in the afternoon.

The next routine forecast will be issued at 10:00 am EDT Thursday.

* 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.