IDW11130
Australian Government Bureau of Meteorology
Western Australia
Issued at 8:43 am WST on Wednesday 20 May 2026
for the period until midnight WST Friday 22 May 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 lies over southern WA and gradually moves east during today. A weak cold front moves over southwest parts during Thursday, before another ridge develops over the southwest during Friday.
Winds: East to southeasterly 15 to 20 knots tending east to northeasterly in the morning then becoming variable about 10 knots in the late evening. Winds reaching up to 25 knots offshore north of Coral Bay in the late morning and early afternoon. Seas: Around 1 metre, increasing to 1 to 2 metres during the morning, then decreasing below 1.5 metres by early evening. 1st Swell: Southwesterly 1.5 metres inshore, increasing to 1.5 to 2 metres offshore south of Coral Bay. 2nd Swell: Northeasterly below 1 metre, increasing to 1 to 1.5 metres north of Coral Bay around midday. Weather: Sunny day. The chance of a thunderstorm offshore north of Coral Bay in the late afternoon and evening.
Winds: South to southeasterly 10 to 15 knots tending east to southeasterly in the early morning then tending southeast to southwesterly 15 to 20 knots in the evening. Seas: Around 1 metre. 1st Swell: Southwesterly 1.5 metres. 2nd Swell: Northeasterly below 1 metre, increasing to 1 to 1.5 metres north of Coral Bay. Weather: Mostly sunny.
Winds: South to southeasterly 15 to 20 knots. Seas: 1 to 1.5 metres. Swell: Southwesterly 1 to 1.5 metres inshore, increasing to 1.5 to 2 metres offshore. Weather: Sunny.
Winds: East to northeasterly 10 to 15 knots tending north to northeasterly in the middle of the day then becoming variable about 10 knots in the early afternoon. Seas: Below 1 metre. Swell: Southwesterly 1.5 to 2 metres. Weather: Mostly sunny.
Winds: South to southeasterly about 10 knots increasing to 15 to 20 knots before dawn. Seas: Below 1 metre, increasing to 1 to 1.5 metres during the afternoon. Swell: Southwesterly 1.5 to 2 metres. Weather: Sunny.
Winds: Southerly 15 to 25 knots tending southeasterly during the morning. Seas: 1.5 to 2 metres. Swell: Southwesterly 1.5 to 2.5 metres. Weather: Mostly sunny.
Winds: Northeasterly 10 to 15 knots tending northerly in the middle of the day then becoming variable below 10 knots in the early afternoon. Seas: Below 1 metre. Swell: Southwesterly 1.5 to 2 metres. Weather: Mostly sunny.
Winds: Variable about 10 knots becoming southerly 15 to 20 knots in the middle of the day. Winds reaching up to 25 knots offshore south of Geraldton in the late evening. Seas: Below 1 metre, increasing to 1 to 1.5 metres during the afternoon. Swell: Southwesterly 1.5 metres inshore, increasing to 1.5 to 2 metres offshore. Weather: Mostly sunny day. The chance of a thunderstorm offshore south of Geraldton in the late afternoon and evening.
Winds: Southerly 20 to 25 knots turning southeasterly 15 to 25 knots during the morning. Seas: 1 to 2 metres. Swell: Southwesterly 1.5 to 2.5 metres. Weather: Partly cloudy.
Winds: North to northeasterly 10 to 15 knots tending north to northwesterly in the middle of the day then becoming variable below 10 knots in the late afternoon. Seas: Below 1 metre. Swell: Southwesterly 2 to 2.5 metres. Weather: Mostly sunny.
Winds: Variable about 10 knots becoming south to southwesterly 15 to 20 knots in the middle of the day. Winds reaching up to 25 knots offshore in the evening. Seas: Below 1 metre, increasing to 1 to 2 metres during the afternoon. Swell: Southwesterly 2 to 2.5 metres. Weather: Partly cloudy. 70% chance of showers. The chance of a thunderstorm in the afternoon and early evening.
Winds: Southerly 15 to 20 knots turning southeasterly during the morning. Seas: 1 to 2 metres, decreasing to 1 metre during the morning. Swell: Southwesterly 2 to 2.5 metres. Weather: Partly cloudy. 60% chance of showers.
Winds: Northerly 10 to 15 knots turning west to northwesterly below 10 knots during the morning and early afternoon then becoming variable in the evening. Seas: Below 1 metre. Swell: Southwesterly 2 to 2.5 metres. Weather: Mostly sunny.
Winds: Variable about 10 knots becoming southwesterly 15 to 25 knots in the morning then tending southerly in the late afternoon. Seas: Below 1 metre, increasing to 1 to 2 metres around midday. Swell: Southwesterly 2 to 2.5 metres. Weather: Partly cloudy. 90% chance of showers. The chance of a thunderstorm in the morning and afternoon.
Winds: Southerly 15 to 20 knots turning southeasterly 10 to 15 knots during the day. Seas: 1 to 1.5 metres, decreasing to 1 metre during the morning. Swell: Southwesterly 2 to 2.5 metres. Weather: Partly cloudy. 60% chance of showers.
Winds: North to northwesterly 10 to 15 knots becoming variable below 10 knots in the middle of the day. Seas: Below 1 metre. Swell: Southwesterly 1.5 to 2.5 metres. Weather: Mostly sunny.
Winds: Variable about 10 knots becoming west to southwesterly 15 to 20 knots in the morning then turning southerly 15 to 25 knots in the late morning. Seas: Around 1 metre, increasing to 1 to 2 metres around midday. Swell: Southwesterly 1.5 to 2.5 metres. Weather: Partly cloudy. 95% chance of showers. The chance of a thunderstorm in the morning and afternoon.
Winds: Southerly 15 to 20 knots turning southeasterly 10 to 15 knots during the day. Seas: 1 to 1.5 metres, decreasing below 1 metre during the afternoon. Swell: Southwesterly 1.5 to 2.5 metres. Weather: Partly cloudy. 50% chance of showers.
The next routine forecast will be issued at 1:01 pm WST Wednesday.
* 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