IDW11140
Australian Government Bureau of Meteorology
Western Australia
Issued at 1:01 am WST on Sunday 18 January 2026
for the period until midnight WST Tuesday 20 January 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 trough continues moving east through central districts and along the south coast. A new ridge will develop about southwest WA in its wake, spanning along the south coast by Monday. A west coast trough will develop from Monday, remaining about the coast through to Wednesday.
Winds: South to southwesterly about 10 knots increasing to 10 to 15 knots in the evening then tending south to southeasterly in the late evening. Seas: Below 1 metre. Swell: Southwesterly 2 to 3 metres. Weather: Partly cloudy.
Winds: Southeasterly 10 to 15 knots tending northeast to southeasterly in the early morning then becoming southeasterly 15 to 20 knots in the middle of the day. Winds reaching up to 25 knots inshore in the evening. Seas: Below 1 metre, increasing to 1 to 1.5 metres during the afternoon. Swell: Southwesterly 2 to 3 metres, increasing to 3 to 5 metres around midday. Weather: Cloud clearing.
Winds: East to southeasterly 15 to 20 knots. Seas: 1 to 1.5 metres. Swell: Southwesterly 3 to 5 metres, decreasing to 3 metres during the afternoon. Weather: Sunny.
Winds: South to southwesterly 10 to 15 knots, reaching up to 20 knots offshore east of Albany early in the morning. Winds decreasing to about 10 knots in the morning. Seas: 1 to 1.5 metres, decreasing to 1 metre during the morning. 1st Swell: Southwesterly 2 to 2.5 metres. 2nd Swell: Easterly around 1 metre. Weather: Partly cloudy.
Winds: Variable about 10 knots becoming easterly 15 to 20 knots in the early afternoon. Seas: Below 1 metre, increasing to 1 to 1.5 metres inshore by early evening. Swell: Southwesterly 1.5 to 2.5 metres, increasing to 2 to 4 metres around midday. Weather: Mostly sunny.
Winds: Easterly 15 to 20 knots. Seas: 1 to 1.5 metres, increasing to 1.5 to 2 metres inshore during the afternoon. Swell: Southwesterly 3 to 4 metres, decreasing to 2.5 to 3 metres during the morning. Weather: Partly cloudy.
Winds: Southwesterly 15 to 20 knots turning south to southeasterly below 10 knots during the afternoon and evening. Seas: 1 to 1.5 metres, decreasing below 1 metre during the morning. 1st Swell: Southwesterly 2 to 2.5 metres. 2nd Swell: Easterly around 1 metre. Weather: Partly cloudy.
Winds: South to southeasterly about 10 knots tending east to southeasterly 10 to 15 knots in the early morning. Winds reaching up to 20 knots west of Esperance in the evening. Seas: Around 1 metre, increasing to 1 to 1.5 metres west of Esperance during the afternoon. Swell: Southwesterly 2 to 3 metres. Weather: Partly cloudy.
Winds: Easterly 15 to 25 knots. Seas: 1 to 1.5 metres, increasing to 1 to 2 metres east of Hopetoun during the afternoon. Swell: Southwesterly 2.5 to 4 metres, decreasing to 2.5 to 3 metres during the morning. Weather: Partly cloudy.
Winds: Southerly 15 to 20 knots. Seas: 1 to 1.5 metres. 1st Swell: Southwesterly 1 to 1.5 metres. 2nd Swell: East to southeasterly around 1 metre. Weather: Mostly sunny.
Winds: Southerly 10 to 15 knots turning southeasterly 15 to 20 knots during the morning and early afternoon. 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: Southwesterly 1.5 to 2 metres, decreasing to 1.5 metres during the morning. Weather: Cloudy.
Winds: Southeasterly 15 to 25 knots. Seas: 1 to 1.5 metres, increasing to 1.5 to 2 metres east of Eyre during the afternoon or evening. Swell: Southwesterly 1.5 metres, increasing to 1.5 to 2.5 metres during the morning. Weather: Cloudy.
The next routine forecast will be issued at 7:01 am WST Sunday.
* 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