Australian Government

Bureau of Meteorology


Coastal Waters Forecast 

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IDN11004

Australian Government Bureau of Meteorology
New South Wales

Coastal Waters Forecast for New South Wales
Southern Zones: Port Hacking to Gabo Island

Issued at 10:00 pm EDT on Monday 18 October 2021
for the period until midnight EDT Thursday 21 October 2021.

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 over the Tasman Sea will continue to drift east today as a trough develops close to the coast, bringing a southerly change to southern waters tonight. The southerly will gradually move northwards over the next couple of days as an area of low pressure develops offshore. Another ridge is expected by Friday.

Illawarra Coast: Port Hacking to Ulladulla

Forecast for Monday 18 October until midnight

Winds: Northerly 10 to 15 knots. Seas: Around 1 metre. Swell: Southerly around 1 metre inshore, increasing to 1 to 1.5 metres offshore north of Port Kembla. Weather: Mostly clear.

Forecast for Tuesday 19 October

Strong Wind Warning for Tuesday for Illawarra Coast

Winds: North to northwesterly 10 to 15 knots shifting southerly 15 to 25 knots through the morning. Winds reaching 30 knots north of Point Perpendicular during the afternoon and evening. Seas: Around 1 metre, increasing to 1.5 to 2.5 metres during the morning. Swell: Southerly around 1 metre inshore, increasing to 1 to 1.5 metres offshore north of Port Kembla by early evening. Weather: Cloudy. 95% chance of showers. The chance of a thunderstorm.

Forecast for Wednesday 20 October

Winds: Southerly 15 to 25 knots increasing to 20 to 30 knots early in the morning then decreasing to 15 to 25 knots in the evening. Seas: 1.5 to 2.5 metres. 1st Swell: Southerly around 1 metre, increasing to 1 to 1.5 metres during the morning, then increasing to 1.5 to 2 metres around midday. 2nd Swell: Northeasterly around 1 metre. Weather: Partly cloudy. 95% chance of showers.

Forecast for Thursday 21 October

Winds: South to southeasterly 15 to 20 knots. Seas: 1 to 2 metres, decreasing to 1 metre during the morning. 1st Swell: Northeasterly below 1 metre, tending easterly 1 to 2 metres during the morning. 2nd Swell: Southerly 1 to 1.5 metres, decreasing to around 1 metre during the afternoon or evening. Weather: Partly cloudy. 70% chance of showers.

Batemans Coast: Ulladulla to Montague Island

Forecast for Monday 18 October until midnight

Winds: North to northeasterly 10 to 15 knots. Seas: Below 1 metre. Swell: Southerly around 1 metre. Weather: Partly cloudy. The chance of a thunderstorm.

Forecast for Tuesday 19 October

Strong Wind Warning for Tuesday for Batemans Coast

Winds: Southerly 20 to 30 knots. Seas: Around 1 metre, increasing to 1.5 to 2.5 metres during the morning. Swell: Southerly around 1 metre. Weather: Cloudy. 95% chance of showers. The chance of a thunderstorm.

Forecast for Wednesday 20 October

Winds: Southerly 15 to 25 knots. Seas: 1.5 to 2 metres. Swell: Southerly 1 to 2 metres. Weather: Partly cloudy. 90% chance of showers.

Forecast for Thursday 21 October

Winds: South to southeasterly 10 to 15 knots tending east to southeasterly during the day. Seas: 1 to 1.5 metres, decreasing below 1 metre during the morning. 1st Swell: Southeasterly 1.5 to 2 metres, decreasing to 1 to 1.5 metres during the afternoon. 2nd Swell: Northeasterly below 1 metre, tending easterly 1 to 2 metres during the afternoon. Weather: Partly cloudy. 70% chance of showers.

Eden Coast: Montague Island to Gabo Island

Forecast for Monday 18 October until midnight

Winds: East to northeasterly 10 to 15 knots tending southeast to southwesterly 15 to 25 knots in the late evening. Seas: Below 1 metre. Swell: Southerly below 1 metre. Weather: Cloudy. 50% chance of showers. The chance of a thunderstorm.

Forecast for Tuesday 19 October

Strong Wind Warning for Tuesday for Eden Coast

Winds: Southerly 15 to 25 knots, reaching up to 30 knots offshore north of Green Cape during the morning. Seas: Below 1 metre, increasing to 1.5 to 2.5 metres during the morning. Swell: Southerly below 1 metre. Weather: Cloudy. 90% chance of showers. The chance of a thunderstorm in the early morning.

Forecast for Wednesday 20 October

Winds: Southerly 15 to 20 knots increasing to 25 knots before turning southeasterly 15 to 20 knots during the morning and early afternoon. Seas: 1 to 2 metres. 1st Swell: Southerly 1 to 1.5 metres, tending east to southeasterly 1.5 to 2.5 metres during the morning. 2nd Swell: Northeasterly around 1 metre. Weather: Partly cloudy. 80% chance of showers.

Forecast for Thursday 21 October

Winds: Southeasterly 10 to 15 knots turning east to northeasterly during the morning. Seas: Around 1 metre. 1st Swell: East to northeasterly 1.5 to 2.5 metres. 2nd Swell: Southeasterly around 1 metre. Weather: Partly cloudy. 60% chance of showers.

The next routine forecast will be issued at 4:10 am EDT Tuesday.

* 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.