Australian Government

Bureau of Meteorology


Coastal Waters Forecast 

Marine (lite) Home

IDN11003

Australian Government Bureau of Meteorology
New South Wales

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

Issued at 4:10 am EST on Monday 16 September 2019
for the period until midnight EST Wednesday 18 September 2019.

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

Details of warnings are available on the Bureau's website www.bom.gov.au, by telephone 1300-659-218* or through some TV and radio broadcasts.

Weather Situation

A cold front is moving along southern and central parts of the New South Wales coast today, bringing a gusty southerly change, which will continue to the north overnight. Within this system, a low is forecast to develop offshore during Tuesday, while a high strengthens over the southern Tasman Sea. This will further reinforce southerly winds along much of the coast, likely reaching gale force in some areas depending on the position and depth of the low. The low should weaken during Wednesday and Thursday as the high becomes dominant over the Tasman Sea, pushing a ridge into New South Wales, and bringing a gradual return to northeasterly winds. Another cold front looks set to arrive on the weekend.

Hunter Coast: Seal Rocks to Broken Bay

Forecast for Monday 16 September until midnight

Strong Wind Warning for Monday for Hunter Coast

Winds: North to northwesterly 10 to 15 knots, increasing to 15 to 20 knots ahead of a gusty south to southeasterly change 20 to 30 knots in the late afternoon or evening Seas: 1 to 1.5 metres, increasing to 1.5 to 2.5 metres in the evening. Swell: Southerly around 1 metre. Weather: Partly cloudy. 50% chance of showers at night.

Forecast for Tuesday 17 September

Gale Warning for Tuesday for Hunter Coast

Winds: South to southeasterly 15 to 25 knots becoming southerly 20 to 30 knots in the morning. Winds increasing to 30 to 40 knots in the evening, mainly offshore. Seas: 2 to 3 metres, increasing to 3 to 4 metres by evening. Swell: Southerly 1 to 2 metres, increasing to 2 to 3 metres during the afternoon. Weather: Cloudy. 95% chance of rain. The chance of a thunderstorm. Caution: Large and powerful surf conditions in the evening are expected to be hazardous for coastal activities such as crossing bars by boat and rock fishing.

Forecast for Wednesday 18 September

Winds: Southeast to southwesterly 25 to 40 knots tending east to southeasterly 25 to 35 knots during the morning then tending east to northeasterly 15 to 25 knots during the evening. Seas: 2 to 4 metres, decreasing to 2 to 3 metres during the morning. 1st Swell: Southerly 3 to 4 metres, tending southeasterly 2 to 3 metres during the afternoon. 2nd Swell: East to northeasterly 1 to 1.5 metres. Weather: Cloudy. 90% chance of showers. The chance of a thunderstorm in the evening. Caution: Large and powerful surf conditions are expected to be hazardous for coastal activities such as crossing bars by boat and rock fishing.

Sydney Coast: Broken Bay to Port Hacking

Forecast for Monday 16 September until midnight

Strong Wind Warning for Monday for Sydney Coast

Winds: North to northwesterly 10 to 15 knots, increasing to 15 to 20 knots in the morning ahead of a gusty southerly change 20 to 30 knots in the mid to late afternoon. Seas: 1 to 1.5 metres, increasing to 2 to 3 metres by evening. Swell: Southerly around 1 metre. Weather: Mostly sunny morning. 60% chance of showers this evening.

Forecast for Tuesday 17 September

Gale Warning for Tuesday for Sydney Coast

Winds: South to southeasterly 20 to 30 knots, increasing to 25 to 35 knots offshore in the evening. Seas: 2 to 3 metres, reaching 4 metres offshore later. 1st Swell: Southerly 1 to 1.5 metres, increasing to 1.5 to 2 metres around midday. 2nd Swell: Northeasterly around 1 metre. Weather: Cloudy. 95% chance of rain. Caution: Large and powerful surf conditions in the evening are expected to be hazardous for coastal activities such as crossing bars by boat and rock fishing.

Forecast for Wednesday 18 September

Winds: South to southeasterly 30 to 40 knots turning easterly 15 to 25 knots during the morning. Seas: 3 to 5 metres, decreasing to 1.5 to 2.5 metres during the afternoon. 1st Swell: Southeasterly 2.5 to 4 metres. 2nd Swell: Northeasterly 1 to 1.5 metres, tending easterly around 1 metre during the afternoon. Weather: Cloudy. 95% chance of showers. Caution: Large and powerful surf conditions are expected to be hazardous for coastal activities such as crossing bars by boat and rock fishing.

Illawarra Coast: Port Hacking to Ulladulla

Forecast for Monday 16 September until midnight

Strong Wind Warning for Monday for Illawarra Coast

Winds: North to northwesterly 10 to 15 knots, increasing to 15 to 20 knots ahead of a gusty southerly change 20 to 30 knots in the early afternoon. Seas: 1 to 1.5 metres, increasing to 2 to 3 metres during the afternoon. Swell: Southerly around 1 metre, increasing to 1 to 1.5 metres by evening. Weather: Partly cloudy. 80% chance of rain, mainly in the evening.

Forecast for Tuesday 17 September

Strong Wind Warning for Tuesday for Illawarra Coast

Winds: South to southeasterly 20 to 30 knots. Seas: 2 to 3 metres. 1st Swell: Southerly 1 to 1.5 metres. 2nd Swell: Northeasterly around 1 metre. Weather: Cloudy. 90% chance of rain. Caution: Large and powerful surf conditions in the evening are expected to be hazardous for coastal activities such as crossing bars by boat and rock fishing.

Forecast for Wednesday 18 September

Winds: South to southeasterly 25 to 35 knots turning easterly 15 to 20 knots during the day. Seas: 2.5 to 4 metres, decreasing to 1 to 2 metres during the afternoon or evening. 1st Swell: Southeasterly 1.5 to 2.5 metres, increasing to 2.5 to 4 metres north of Point Perpendicular. 2nd Swell: Easterly 1.5 to 2.5 metres, decreasing to 1 to 1.5 metres during the afternoon or evening. Weather: Cloudy. 80% chance of showers. Caution: Large and powerful surf conditions are expected to be hazardous for coastal activities such as crossing bars by boat and rock fishing.

The next routine forecast will be issued at 4:05 pm EST Monday.

* 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.