Australian Government

Bureau of Meteorology


Coastal Waters Forecast 

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IDN11013

Australian Government Bureau of Meteorology
New South Wales

Local Waters Forecast for Sydney Enclosed Waters

Issued at 3:55 am 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.

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

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.

Forecast for Tuesday 18 November until midnight

Winds: Variable about 10 knots becoming east to northeasterly 15 to 20 knots in the early afternoon then tending north to northeasterly in the evening. Seas: Below 0.5 metres. Weather: Sunny.

Forecast for Wednesday 19 November

Winds: Variable about 10 knots becoming northeasterly 15 to 20 knots in the early afternoon then becoming northerly below 10 knots in the late evening. Seas: Below 0.5 metres. Weather: Sunny.

Forecast for Thursday 20 November

Winds: South to southwesterly 10 to 15 knots turning southeasterly during the morning then tending southerly 15 to 20 knots during the evening. Seas: Below 0.5 metres. Weather: Partly cloudy. 50% chance of showers. The chance of a thunderstorm in the afternoon and evening.

Forecast for Friday 21 November

Winds: Southerly 15 to 20 knots tending southeasterly 10 to 15 knots during the day. Seas: Below 0.5 metres. Weather: Cloudy. 70% chance of showers. The chance of a thunderstorm in the morning.

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

* 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.