IDW11130
Australian Government Bureau of Meteorology
Western Australia
Issued at 7:01 am WST on Thursday 30 July 2026
for the period until midnight WST Saturday 1 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 system in the Bight extends a ridge over southern WA. The high will move east and ridge will weaken on Friday ahead of the next cold front reaching the southwest of the state later Friday. The cold front will move along the south coast during Saturday with a ridge rapidly developing in it's wake.
Winds: East to southeasterly about 10 knots increasing to 10 to 15 knots in the morning then becoming variable about 10 knots in the early afternoon. Seas: Below 1 metre. Swell: Southwesterly 1 to 1.5 metres inshore, increasing to 1.5 to 2 metres offshore. Weather: Sunny.
Winds: South to southeasterly 10 to 15 knots tending south to southwesterly in the late afternoon then tending south to southeasterly in the evening. Seas: Below 1 metre. Swell: Southwesterly 1 to 1.5 metres inshore, increasing to 1.5 to 2 metres offshore. Weather: Sunny.
Winds: South to southeasterly 10 to 15 knots. Seas: Around 1 metre. Swell: Southwesterly 1.5 to 2.5 metres. Weather: Sunny.
Winds: Variable about 10 knots. Seas: Below 1 metre. Swell: Southwesterly 1.5 to 2 metres. Weather: Sunny.
Winds: Southeast to southwesterly about 10 knots increasing to 10 to 15 knots in the evening. Seas: Below 1 metre. Swell: Southwesterly 1.5 to 2.5 metres. Weather: Sunny.
Winds: Southerly 10 to 15 knots turning southeasterly 15 to 20 knots during the morning. Seas: Around 1 metre, increasing to 1 to 1.5 metres offshore south of Denham during the evening. Swell: Southwesterly 2 to 3 metres. Weather: Sunny.
Winds: Northeasterly 10 to 15 knots turning north to northwesterly below 10 knots in the morning then becoming variable in the late afternoon. Seas: Below 1 metre. Swell: Southwesterly 1.5 metres inshore, increasing to 1.5 to 2 metres offshore. Weather: Sunny.
Winds: Variable below 10 knots becoming southwesterly 10 to 15 knots in the late afternoon. Seas: Below 1 metre. Swell: Southwesterly 1.5 to 2 metres, increasing to 2 to 3 metres during the morning. Weather: Sunny.
Winds: South to southwesterly 10 to 15 knots turning southeasterly 15 to 20 knots during the morning. Seas: Around 1 metre, increasing to 1 to 1.5 metres during the morning. Swell: Southwesterly 2 to 3 metres inshore, increasing to 2.5 to 4 metres offshore south of Geraldton. Weather: Partly cloudy. 50% chance of showers.
Winds: Northerly 10 to 15 knots becoming variable below 10 knots in the early afternoon. Seas: Below 1 metre. Swell: Southwesterly 2 metres. Weather: Sunny.
Winds: Variable below 10 knots becoming west to northwesterly 10 to 15 knots in the middle of the day then tending west to southwesterly in the evening. Seas: Below 1 metre. Swell: Southwesterly 2 metres, increasing to 2 to 3 metres during the morning. Weather: Sunny.
Winds: South to southwesterly 15 to 20 knots turning southeasterly during the morning. Seas: 1 to 1.5 metres. Swell: Southwesterly 3 metres, increasing to 3 to 4 metres during the morning. Weather: Cloudy. 60% chance of showers.
Winds: North to northeasterly 10 to 15 knots turning northwesterly below 10 knots in the middle of the day. Seas: Below 1 metre. Swell: Southwesterly 1.5 to 2 metres. Weather: Mostly sunny.
Winds: North to northwesterly 10 to 15 knots turning west to southwesterly 15 to 20 knots in the evening. Seas: Around 1 metre, increasing to 1 to 1.5 metres during the afternoon. Swell: Southwesterly 2 metres, increasing to 2 to 3 metres during the morning. Weather: Mostly sunny. 70% chance of showers.
Winds: South to southwesterly 15 to 20 knots turning east to southeasterly 10 to 15 knots during the evening. Seas: 1 to 1.5 metres, decreasing to 1 metre during the morning. Swell: Southwesterly 3 metres, increasing to 3 to 5 metres during the morning. Weather: Cloudy. 50% chance of showers.
Winds: Northwest to northeasterly 10 to 15 knots becoming west to northwesterly about 10 knots in the early afternoon. Seas: Below 1 metre. Swell: Southwesterly 1 to 1.5 metres inshore, increasing to 1.5 to 2 metres offshore. Weather: Partly cloudy.
Winds: Northwesterly 15 to 20 knots turning southwesterly in the evening. Winds reaching up to 25 knots offshore in the evening. Seas: Below 1 metre, increasing to 1 to 1.5 metres during the morning, then increasing to 1 to 2 metres around midday. Swell: Southwesterly 1.5 to 2.5 metres inshore, increasing to 2 to 4 metres offshore around midday. Weather: Partly cloudy. 95% chance of showers. The chance of a thunderstorm in the afternoon.
Winds: South to southwesterly 15 to 20 knots turning southeasterly below 10 knots during the afternoon. Seas: 1 to 2 metres, decreasing to 1 metre during the morning. Swell: Southwesterly 2 to 3 metres inshore, increasing to 3 to 5 metres offshore. Weather: Cloudy.
The next routine forecast will be issued at 1:01 pm WST Thursday.
* 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