IDW11130
Australian Government Bureau of Meteorology
Western Australia
Issued at 7:01 pm WST on Thursday 19 March 2026
for the period until midnight WST Sunday 22 March 2026.
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.
A ridge over central and southeastern parts of the state will slowly weaken over the weekend. A west coast trough will move inland later Saturday, ahead of a weak cold front brushing past the south coast on Sunday. A new ridge will arrive on the southwest coast on Sunday, building east along the south coast on Monday.
Winds: Southwesterly 15 to 20 knots, reaching up to 25 knots north of Coral Bay in the evening. Winds turning southerly in the late evening. Seas: 1.5 to 2 metres. Swell: Southwesterly around 1 metre. Weather: Clear.
Winds: Southerly 15 to 20 knots, reaching up to 25 knots offshore south of Coral Bay in the evening. Seas: 1 to 2 metres, decreasing to 1 to 1.5 metres during the morning. Swell: Southwesterly around 1 metre, increasing to 1 to 1.5 metres during the morning. Weather: Sunny.
Winds: Southerly 15 to 25 knots. Seas: 1 to 1.5 metres. Swell: Southwesterly 1 to 1.5 metres inshore, increasing to 1.5 to 2 metres offshore. Weather: Mostly sunny.
Winds: Southerly 15 to 25 knots. Seas: 1 to 1.5 metres, increasing to 1.5 to 2 metres offshore south of Coral Bay. Swell: Southwesterly 1 to 1.5 metres inshore, increasing to 2 to 2.5 metres offshore. Weather: Partly cloudy.
Winds: Southwesterly 15 to 20 knots turning southerly in the late evening. Seas: Around 1 metre, increasing to 1 to 1.5 metres north of Denham. Swell: Southwesterly around 1 metre inshore, increasing to 1.5 metres offshore south of Denham. Weather: Mostly clear.
Winds: Southerly 15 to 20 knots. Seas: 1 to 1.5 metres. Swell: South to southwesterly 1 to 1.5 metres inshore, increasing to 1.5 to 2 metres offshore south of Denham during the morning. Weather: Sunny.
Winds: Southerly 15 to 25 knots. Seas: 1 to 1.5 metres, increasing to 1.5 to 2 metres during the afternoon. Swell: South to southwesterly 1 to 1.5 metres inshore, increasing to 1.5 to 2 metres offshore. Weather: Sunny.
Winds: Southerly 20 to 30 knots. Seas: 1.5 to 2 metres. Swell: Southwesterly 1.5 to 2.5 metres. Weather: Partly cloudy.
Winds: South to southeasterly about 10 knots. Seas: Below 1 metre. Swell: Southwesterly 1 to 1.5 metres inshore, increasing to 1.5 to 2 metres offshore south of Geraldton. Weather: Partly cloudy.
Winds: Southerly 10 to 15 knots. Seas: Around 1 metre. Swell: Southwesterly 1.5 to 2.5 metres. Weather: Sunny.
Winds: Southerly 15 to 20 knots increasing to 20 to 25 knots in the evening. Seas: Around 1 metre, increasing to 1.5 to 2 metres during the afternoon. Swell: Southwesterly 1.5 to 2.5 metres. Weather: Mostly sunny.
Winds: Southerly 15 to 25 knots. Seas: 1.5 to 2 metres. Swell: Southwesterly 1.5 to 2.5 metres. Weather: Partly cloudy.
Winds: Southerly 10 to 15 knots. Seas: Below 1 metre. Swell: Southwesterly 1.5 metres inshore, increasing to 2 metres offshore. Weather: Clear.
Winds: Southerly 10 to 15 knots. Seas: Around 1 metre. Swell: Southwesterly 2 to 2.5 metres. Weather: Mostly sunny.
Winds: Southerly 15 to 20 knots increasing to 20 to 25 knots in the evening. Seas: Around 1 metre, increasing to 1 to 2 metres during the afternoon. Swell: Southwesterly 2 to 2.5 metres. Weather: Mostly sunny.
Winds: Southerly 20 to 30 knots. Seas: 1.5 to 2 metres. Swell: Southwesterly 2 to 2.5 metres. Weather: Partly cloudy.
Winds: Southerly 10 to 15 knots. Seas: Below 1 metre. Swell: Southwesterly 1.5 to 2 metres. Weather: Clear.
Winds: Southerly 15 to 20 knots. Seas: 1 to 1.5 metres, decreasing to 1 metre during the morning. Swell: Southwesterly 1.5 to 2.5 metres. Weather: Cloud clearing.
Winds: Southerly 15 to 25 knots increasing to 20 to 30 knots in the late evening. Seas: Around 1 metre, increasing to 1 to 2 metres during the afternoon. Swell: Southwesterly 2 to 2.5 metres. Weather: Sunny.
Winds: Southerly 20 to 30 knots turning southeasterly 25 to 30 knots during the evening. Seas: 1.5 to 2.5 metres. Swell: Southwesterly 1.5 to 2.5 metres. Weather: Cloud clearing.
Winds: Southerly 10 to 15 knots, reaching up to 20 knots offshore in the evening. Seas: Around 1 metre, increasing to 1 to 1.5 metres offshore. Swell: Southwesterly 1 to 1.5 metres inshore, increasing to 1.5 to 2 metres offshore. Weather: Clear.
Winds: South to southeasterly 15 to 20 knots, reaching up to 25 knots offshore early in the morning and again in the late evening. Seas: 1 to 2 metres, decreasing to 1 to 1.5 metres during the morning. Swell: Southwesterly 1 to 1.5 metres inshore, increasing to 1.5 to 2.5 metres offshore. Weather: Partly cloudy.
Winds: Southerly 15 to 25 knots increasing to 20 to 30 knots in the evening then decreasing to 20 to 25 knots in the late evening. Seas: 1 to 2 metres, decreasing to 1 to 1.5 metres during the morning, then increasing to 1 to 2 metres during the afternoon. Swell: Southwesterly 1 to 1.5 metres inshore, increasing to 1.5 to 2.5 metres offshore. Weather: Mostly sunny.
Winds: South to southeasterly 20 to 30 knots. Seas: 1.5 to 2.5 metres. 1st Swell: Southwesterly 1 to 2 metres. 2nd Swell: Southerly below 1 metre, increasing to 1 to 1.5 metres during the afternoon or evening. Weather: Cloud clearing.
The next routine forecast will be issued at 1:01 am WST Friday.
* 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