Australian Government

Bureau of Meteorology


Coastal Waters Forecast 

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IDN11003

Australian Government Bureau of Meteorology
New South Wales

Coastal Waters Forecast for New South Wales
Central Zones: Seal Rocks to Ulladulla

Issued at 4:05 pm EST on Tuesday 17 September 2024
for the period until midnight EST Friday 20 September 2024.

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 high pressure system is crossing the state today, and this will be followed by a series of cold fronts and associated troughs crossing the state from midweek onwards.

Hunter Coast: Seal Rocks to Broken Bay

Forecast for Tuesday 17 September until midnight

Winds: Variable about 10 knots becoming northwest to northeasterly 10 to 15 knots in the evening. Seas: Below 1 metre. Swell: Southerly 2 to 3 metres. Weather: Clear.

Forecast for Wednesday 18 September

Winds: Northwesterly 15 to 20 knots, reaching up to 25 knots offshore south of Norah Head in the evening. Seas: Around 1 metre, increasing to 1 to 2 metres offshore south of Port Stephens. Swell: Southerly 1.5 to 2.5 metres, decreasing to 1.5 metres later in the evening. Weather: Sunny.

Forecast for Thursday 19 September

Winds: Northwesterly 15 to 25 knots turning westerly in the afternoon. Seas: 1 to 1.5 metres, increasing to 1 to 2 metres offshore north of Norah Head. Swell: Southerly 1 to 1.5 metres, decreasing to around 1 metre during the afternoon. Weather: Sunny.

Forecast for Friday 20 September

Winds: West to southwesterly 15 to 25 knots becoming variable about 10 knots during the day then becoming northwest to northeasterly 15 to 20 knots during the evening. Seas: 1 to 2 metres, decreasing below 1 metre during the afternoon. Swell: Southerly around 1 metre, increasing to 1 to 2 metres during the morning. Weather: Sunny.

Sydney Coast: Broken Bay to Port Hacking

Forecast for Tuesday 17 September until midnight

Winds: North to northeasterly 10 to 15 knots turning west to northwesterly in the late evening. Seas: Below 1 metre. Swell: Southerly 2 to 2.5 metres. Weather: Clear.

Forecast for Wednesday 18 September

Winds: Westerly 10 to 15 knots turning northwesterly during the morning. Winds reaching up to 20 knots offshore early in the morning and again in the late evening. Seas: Around 1 metre. Swell: Southerly 1.5 to 2 metres, decreasing to 1.5 metres during the afternoon. Weather: Sunny.

Forecast for Thursday 19 September

Winds: West to northwesterly 15 to 25 knots becoming westerly 20 to 30 knots in the late evening then decreasing to 15 to 25 knots in the late evening. Seas: 1 to 1.5 metres, decreasing to 1 metre around midday, then increasing to 1 to 1.5 metres by early evening. Swell: Southerly 1 to 1.5 metres, decreasing to around 1 metre during the morning. Weather: Sunny.

Forecast for Friday 20 September

Winds: West to southwesterly 15 to 25 knots tending north to northeasterly 10 to 15 knots during the afternoon then tending west to northwesterly during the evening. Seas: 1 to 2 metres, decreasing to 1 metre during the afternoon. Swell: Southerly 1 to 1.5 metres, increasing to 1.5 to 2 metres during the morning. Weather: Sunny.

Illawarra Coast: Port Hacking to Ulladulla

Forecast for Tuesday 17 September until midnight

Winds: North to northeasterly 10 to 15 knots turning west to northwesterly in the evening. Winds reaching up to 20 knots offshore south of Port Kembla in the late evening. Seas: Below 1 metre. Swell: Southerly 2 to 2.5 metres. Weather: Clear.

Forecast for Wednesday 18 September

Strong Wind Warning for Wednesday for Illawarra Coast

Winds: Westerly 15 to 20 knots turning northwesterly in the late morning and afternoon. Winds reaching up to 30 knots offshore south of Point Perpendicular in the late morning. Seas: Around 1 metre, increasing to 1 to 2 metres offshore. Swell: Southerly 1.5 to 2 metres, decreasing to 1.5 metres during the afternoon. Weather: Sunny.

Forecast for Thursday 19 September

Winds: West to northwesterly 15 to 25 knots becoming westerly 20 to 30 knots in the evening then decreasing to 15 to 25 knots in the late evening. Seas: 1 to 1.5 metres, increasing to 1.5 to 2.5 metres by early evening. Swell: Southerly 1 to 1.5 metres, decreasing to around 1 metre by early evening. Weather: Sunny.

Forecast for Friday 20 September

Winds: Westerly 20 to 30 knots tending northwest to northeasterly 15 to 20 knots during the afternoon then tending west to northwesterly during the evening. Seas: 1.5 to 2.5 metres, decreasing to 1 to 1.5 metres during the morning. Swell: Southerly 1 to 1.5 metres inshore, increasing to 1 to 2 metres offshore. Weather: Sunny.

The next routine forecast will be issued at 4:10 am EST Wednesday.

* Calls to 1300 numbers cost around 27.5c incl. GST, higher from mobiles or public phones.

Check the latest Coastal Waters Forecasts for information on wind, wave and weather conditions for neighbouring coastal zones.