Australian Government

Bureau of Meteorology


Coastal Waters Forecast 

Marine (lite) Home

IDW11140

Australian Government Bureau of Meteorology
Western Australia

Coastal Waters Forecast for Western Australia
Southern Zones: Cape Naturaliste to WA-SA Border

Issued at 4:00 pm WST on Monday 18 October 2021
for the period until midnight WST 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 trough extends from the Goldfields to the southwest of the State and will move east across the south coast ahead of a rain band that moves over the west coast Tuesday morning. A low pressure system and cold front then moves over the southwest of the State on Tuesday evening before rapidly weakening overnight into Wednesday. A ridge then develops over the Gascoyne coast during Wednesday, gradually drifting south through the remainder of the week.

Leeuwin Coast: Cape Naturaliste to Walpole

Forecast for Monday 18 October until midnight

Winds: Northwest to northeasterly 15 to 20 knots. Seas: 1 to 1.5 metres. Swell: Westerly around 1 metre inshore, increasing to 1 to 1.5 metres offshore. Weather: Mostly clear.

Forecast for Tuesday 19 October

Gale Warning for Tuesday for Leeuwin Coast

Winds: Northeasterly 15 to 25 knots turning north to northwesterly 20 to 30 knots in the late morning and afternoon. Winds reaching up to 35 knots offshore north of Cape Leeuwin during the morning and again in the late evening. Seas: 1 to 1.5 metres, increasing to 2 to 3 metres during the morning. 1st Swell: Westerly 1 to 1.5 metres, increasing to 1.5 to 2 metres by early evening. 2nd Swell: Northwesterly around 1 metre, increasing to 1 to 2 metres around midday. Weather: Cloudy. 80% chance of showers. The chance of a thunderstorm in the afternoon and evening.

Forecast for Wednesday 20 October

Winds: West to southwesterly 20 to 30 knots becoming westerly 25 to 35 knots early in the morning then decreasing to 20 to 30 knots early in the morning. Seas: 1.5 to 2 metres, increasing to 2 to 3 metres during the morning. Swell: Westerly 3 to 5 metres. Weather: Cloudy. 90% chance of showers.

Forecast for Thursday 21 October

Winds: Westerly 15 to 25 knots. Seas: 1.5 to 2 metres, decreasing to 1 to 1.5 metres during the afternoon. Swell: West to southwesterly 2.5 to 3 metres inshore, increasing to 3 to 4 metres offshore. Weather: Cloudy. 60% chance of showers.

Albany Coast: Walpole to Bremer Bay

Forecast for Monday 18 October until midnight

Winds: Easterly 15 to 20 knots, reaching up to 25 knots offshore west of Albany in the late evening. Seas: Around 1 metre, increasing to 1 to 1.5 metres inshore. Swell: Southwesterly around 1 metre inshore, increasing to 1 to 1.5 metres offshore. Weather: Mostly clear.

Forecast for Tuesday 19 October

Strong Wind Warning for Tuesday for Albany Coast

Winds: Northeasterly 15 to 25 knots, reaching up to 30 knots offshore early in the morning. Winds turning north to northwesterly during the morning and early afternoon. Seas: 1 to 2 metres. 1st Swell: West to southwesterly around 1 metre inshore, increasing to 1 to 1.5 metres offshore. 2nd Swell: East to northeasterly around 1 metre offshore. Weather: Cloudy. 50% chance of showers. The chance of a thunderstorm in the late afternoon and evening.

Forecast for Wednesday 20 October

Winds: North to northwesterly 20 to 30 knots turning westerly 25 to 35 knots early in the morning then decreasing to 20 to 30 knots in the morning. Seas: 1.5 metres, increasing to 2 to 3 metres during the morning. Swell: West to southwesterly 2 to 3 metres, increasing to 2.5 to 4 metres by early evening. Weather: Cloudy. 90% chance of showers.

Forecast for Thursday 21 October

Winds: Westerly 15 to 25 knots. Seas: 1.5 to 2 metres. Swell: West to southwesterly 1.5 to 2.5 metres inshore, increasing to 2.5 to 4 metres offshore. Weather: Partly cloudy. 70% chance of showers.

Esperance Coast: Bremer Bay to Israelite Bay

Forecast for Monday 18 October until midnight

Winds: Easterly 15 to 20 knots. Seas: Around 1 metre. Swell: Southwesterly 1 to 1.5 metres. Weather: Partly cloudy.

Forecast for Tuesday 19 October

Strong Wind Warning for Tuesday for Esperance Coast

Winds: East to northeasterly 15 to 25 knots, reaching up to 30 knots east of Esperance during the morning. Winds turning north to northwesterly in the late morning and afternoon. Seas: 1.5 to 2.5 metres. 1st Swell: Southwesterly around 1 metre, increasing to 1 to 1.5 metres east of Esperance. 2nd Swell: Easterly around 1 metre, increasing to 1 to 1.5 metres east of Esperance during the morning. Weather: Cloudy. 60% chance of showers in the afternoon and evening.

Forecast for Wednesday 20 October

Winds: Northwesterly 20 to 25 knots turning westerly 20 to 30 knots during the morning and early afternoon. Seas: 1 to 2 metres, increasing to 2 to 3 metres during the morning. 1st Swell: Southwesterly around 1 metre, increasing to 1 to 1.5 metres during the morning, then increasing to 1.5 to 2.5 metres during the afternoon. 2nd Swell: Easterly 1 to 1.5 metres, decreasing to around 1 metre during the morning. Weather: Partly cloudy. 80% chance of showers.

Forecast for Thursday 21 October

Winds: Westerly 15 to 25 knots turning southwesterly 15 to 20 knots during the afternoon. Seas: 1 to 2 metres, decreasing to 1 to 1.5 metres during the morning. 1st Swell: Southwesterly 1.5 to 2.5 metres. 2nd Swell: Easterly around 1 metre. Weather: Partly cloudy. 60% chance of showers.

Eucla Coast: Israelite Bay to WA-SA Border

Forecast for Monday 18 October until midnight

Strong Wind Warning for Monday for Eucla Coast

Winds: Easterly 20 to 30 knots. Seas: 1 to 2 metres. Swell: Southwesterly 1 to 1.5 metres. Weather: Clear.

Forecast for Tuesday 19 October

Strong Wind Warning for Tuesday for Eucla Coast

Winds: East to northeasterly 15 to 25 knots, reaching up to 30 knots west of Eyre during the morning. Winds turning north to northwesterly 15 to 20 knots in the evening. Seas: 1.5 to 2 metres, decreasing to 1 to 1.5 metres around midday. 1st Swell: Southwesterly 1 to 1.5 metres, decreasing to around 1 metre during the morning. 2nd Swell: Easterly around 1 metre, increasing to 1 to 1.5 metres around midday. Weather: Partly cloudy.

Forecast for Wednesday 20 October

Winds: West to northwesterly 15 to 25 knots turning southwesterly 15 to 20 knots in the afternoon. Seas: 1 to 1.5 metres, increasing to 1.5 to 2 metres during the morning, then decreasing to 1 to 1.5 metres around midday. Swell: Easterly around 1 metre, increasing to 1 to 1.5 metres east of Eyre. Weather: Partly cloudy. 80% chance of showers. The chance of a thunderstorm in the morning and early afternoon.

Forecast for Thursday 21 October

Winds: West to northwesterly 10 to 15 knots turning south to southwesterly during the morning. Seas: Around 1 metre. 1st Swell: Southwesterly 1 to 1.5 metres, increasing to 1.5 to 2 metres during the afternoon. 2nd Swell: Easterly around 1 metre. Weather: Partly cloudy.

The next routine forecast will be issued at 4:00 am WST Tuesday.

* Calls to 1300 numbers cost around 27.5c incl. 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 Forecasts for information on wind, wave and weather conditions for neighbouring coastal zones