IDW11140
Australian Government Bureau of Meteorology
Western Australia
Issued at 1:01 am WST on Tuesday 25 August 2026
for the period until midnight WST Thursday 27 August 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 high pressure centre over southern WA will move eastward to reach South Australia today. A slow-moving cold front and trough will cross the west coast on Wednesday, continuing eastward on Thursday as a low pressure centre develops near the south coast. In the wake of the front and trough, a new ridge will strengthen across the west coast from Thursday.
Winds: Northwesterly 15 to 25 knots, reaching up to 30 knots east of Cape Leeuwin during the day. Seas: 1.5 to 2 metres, increasing to 2 to 3 metres east of Cape Leeuwin during the morning. Swell: Westerly 2 to 3 metres inshore, increasing to 3 to 4 metres offshore east of Cape Leeuwin during the morning. Weather: Cloudy. 95% chance of showers. The chance of a thunderstorm during the morning and afternoon.
Winds: Northwest to southwesterly 10 to 15 knots tending southwesterly in the morning then tending southerly 15 to 20 knots in the middle of the day. Winds reaching up to 25 knots offshore north of Cape Leeuwin in the late evening. Seas: 1 to 1.5 metres, decreasing to 1 metre during the morning, then increasing to 1 to 1.5 metres by early evening. Swell: Westerly 3 to 4 metres, tending southwesterly 4 to 5 metres during the morning. Weather: Cloudy. Near 100% chance of showers. The chance of a thunderstorm north of Cape Leeuwin in the early morning.
Winds: Southerly 15 to 25 knots. Seas: 1 to 2 metres. Swell: Southwesterly 3 to 5 metres. Weather: Cloudy. 70% chance of showers.
Winds: Northwesterly 15 to 20 knots, reaching up to 30 knots offshore in the late morning and afternoon. Seas: 1.5 to 2.5 metres. Swell: West to southwesterly 1 to 2 metres inshore, increasing to 2.5 to 4 metres offshore. Weather: Partly cloudy. 95% chance of showers offshore west of Albany, 60% chance elsewhere. The chance of a thunderstorm offshore west of Albany during this afternoon and early evening.
Winds: West to northwesterly 15 to 20 knots becoming variable about 10 knots in the middle of the day then becoming southerly 15 to 20 knots in the early afternoon. Seas: 1 to 1.5 metres, decreasing to 1 metre during the morning. Swell: Westerly 2 to 4 metres, tending southwesterly 3 to 5 metres during the morning. Weather: Cloudy. Near 100% chance of showers.
Winds: Southerly 15 to 25 knots. Seas: 1 to 2 metres. Swell: Southwesterly 3 to 5 metres. Weather: Cloudy. 80% chance of showers.
Winds: Northerly 15 to 20 knots turning northwesterly during the day. Seas: Below 1 metre, increasing to 1 to 1.5 metres during the morning, then decreasing below 1 metre during the afternoon. Swell: Southwesterly 2 to 3 metres. Weather: Mostly sunny.
Winds: North to northwesterly 10 to 15 knots, reaching up to 20 knots east of Esperance early in the morning. Winds tending northeast to southeasterly in the late afternoon then tending southeast to southwesterly in the evening. Seas: Around 1 metre. Swell: Southwesterly 2 to 3 metres, increasing to 2.5 to 4 metres during the afternoon. Weather: Partly cloudy. 50% chance of showers.
Winds: Southerly 15 to 20 knots increasing to 15 to 25 knots during the morning. Seas: Around 1 metre, increasing to 1 to 2 metres during the morning. Swell: Southwesterly 2.5 to 4 metres, decreasing to 3 metres during the evening. Weather: Cloudy. 95% chance of showers. The chance of a thunderstorm in the afternoon.
Winds: Southeast to southwesterly 10 to 15 knots tending north to northwesterly 15 to 20 knots in the early morning then tending north to northeasterly in the middle of the day. Seas: Around 1 metre, increasing to 1 to 1.5 metres west of Eyre during the morning. Swell: Southwesterly 1.5 to 2.5 metres. Weather: Sunny.
Winds: Northerly 15 to 20 knots, reaching up to 25 knots west of Eyre in the evening. Seas: 1 to 1.5 metres, decreasing to 1 metre around midday, increasing to 1 to 1.5 metres west of Eyre by early evening. Swell: Southwesterly 1.5 to 2 metres. Weather: Mostly sunny.
Winds: Northwest to northeasterly 15 to 20 knots tending southeast to southwesterly 10 to 15 knots during the afternoon. Seas: 1 to 2 metres, decreasing to 1 metre during the morning. Swell: Southwesterly 1.5 to 2.5 metres. Weather: Partly cloudy. 50% chance of showers. The chance of a thunderstorm in the afternoon and evening.
The next routine forecast will be issued at 7:01 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