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 4:10 am EDT on Monday 20 January 2020
for the period until midnight EDT Wednesday 22 January 2020.

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 trough continues to remain along the coast today with the expectation for a low pressure system to develop over southeast Australia and track southeast. A trough associated with this low is expected to bring southerly change to the south coast on Tuesday and central parts of the coast on Wednesday. Another trough is forecast to bring a southerly change to southern parts later on Thursday.

Hunter Coast: Seal Rocks to Broken Bay

Forecast for Monday 20 January until midnight

Strong Wind Warning for Monday for Hunter Coast

Winds: North to northeasterly 15 to 20 knots increasing to 15 to 25 knots in the late afternoon. Winds reaching up to 30 knots in the evening. Seas: Below 1 metre, increasing to 1 to 2 metres around midday. Swell: East to northeasterly 1.5 to 2 metres. Weather: Partly cloudy. The chance of a thunderstorm, possibly severe.

Forecast for Tuesday 21 January

Strong Wind Warning for Tuesday for Hunter Coast

Winds: Northerly 15 to 20 knots, reaching up to 30 knots offshore early in the morning. Winds turning west to northwesterly early in the morning then tending northeast to southeasterly 10 to 15 knots in the late afternoon. Seas: 1.5 to 2.5 metres, decreasing below 1.5 metres during the morning, then decreasing below 1 metre around midday. Swell: Northeasterly 1.5 metres, increasing to 1.5 to 2.5 metres during the morning. Weather: The chance of a thunderstorm offshore north of Port Stephens in the early morning. Sunny day.

Forecast for Wednesday 22 January

Winds: North to northeasterly 10 to 15 knots becoming variable below 10 knots during the morning then becoming northeasterly 15 to 20 knots during the afternoon. Seas: Around 1 metre. Swell: Northeasterly 1 to 1.5 metres. Weather: Mostly sunny.

Sydney Coast: Broken Bay to Port Hacking

Forecast for Monday 20 January until midnight

Strong Wind Warning for Monday for Sydney Coast

Winds: Northeasterly below 10 knots increasing to 15 to 20 knots in the morning then tending northerly in the late evening. Winds reaching up to 30 knots offshore in the evening. Seas: Around 1 metre, increasing to 1 to 1.5 metres during the afternoon. Swell: Easterly 2 metres, tending northeasterly 1.5 to 2 metres during the afternoon, then decreasing to 1.5 metres by early evening. Weather: Partly cloudy. 50% chance of showers. The chance of a thunderstorm, possibly severe.

Forecast for Tuesday 21 January

Winds: West to northwesterly 10 to 15 knots, reaching up to 25 knots offshore early in the morning. Winds turning north to northeasterly in the early afternoon then tending northeast to southeasterly in the late evening. Seas: 1 to 2 metres, decreasing below 1.5 metres during the morning, then decreasing below 1 metre around midday. Swell: Northeasterly 1.5 metres, increasing to 1.5 to 2.5 metres during the morning, then decreasing to 1.5 metres by early evening. Weather: Sunny.

Forecast for Wednesday 22 January

Winds: Variable about 10 knots becoming northeasterly 15 to 20 knots during the afternoon. Seas: Around 1 metre. Swell: Northeasterly 1 to 1.5 metres, decreasing to around 1 metre during the afternoon. Weather: Mostly sunny.

Illawarra Coast: Port Hacking to Ulladulla

Forecast for Monday 20 January until midnight

Strong Wind Warning for Monday for Illawarra Coast

Winds: Variable about 10 knots becoming east to northeasterly 10 to 15 knots in the late afternoon then becoming variable about 10 knots in the late evening. Winds reaching up to 30 knots offshore north of Port Kembla in the late evening. Seas: Around 1 metre, increasing to 1 to 1.5 metres offshore north of Port Kembla during the afternoon. Swell: East to northeasterly 1.5 to 2.5 metres. Weather: Partly cloudy. 70% chance of showers. A thunderstorm likely.

Forecast for Tuesday 21 January

Winds: Variable about 10 knots becoming west to northwesterly 10 to 15 knots early in the morning then turning south to southwesterly during the afternoon and evening. Winds reaching up to 20 knots offshore in the late morning. Seas: 1 to 1.5 metres. Swell: Northeasterly 2 to 2.5 metres, decreasing to 1.5 metres by early evening. Weather: The chance of a thunderstorm south of Port Kembla in the early morning. Sunny day.

Forecast for Wednesday 22 January

Winds: Variable about 10 knots becoming north to northeasterly 15 to 20 knots during the day. Seas: Below 1 metre, increasing to 1 to 1.5 metres during the afternoon or evening. 1st Swell: Northeasterly 1 to 1.5 metres, decreasing to around 1 metre during the morning. 2nd Swell: Southerly around 1 metre. Weather: Partly cloudy.

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