View the current warnings for Western Australia
Forecast issued at 1:01 am WST on Monday 20 July 2026.
Weather Situation
A ridge over central Australia maintains a moderate east to southeasterly flow over most of the north. Winds freshen mid next week as a new ridge develops to the south and strengthens.
Forecast for Monday until midnight
- Winds
- South to southeasterly 10 to 15 knots becoming variable about 10 knots in the middle of the day then becoming south to southwesterly 10 to 15 knots in the late afternoon. Winds reaching up to 20 knots about offshore western waters in the late evening.
- Seas
- Below 1 metre.
- Swell
- West to southwesterly below 1 metre inshore, increasing to 1 to 2 metres offshore.
- Weather
- Sunny.
Tuesday 21 July
- Winds
- South to southeasterly 10 to 15 knots, reaching up to 20 knots west of Barrow Island during the morning. Winds becoming variable about 10 knots in the late afternoon then becoming northwest to southwesterly 10 to 15 knots in the late evening.
- Seas
- Around 1 metre, increasing to 1 to 1.5 metres during the morning, then decreasing to 1 metre around midday.
- Swell
- West to southwesterly around 1 metre inshore, increasing to 1 to 1.5 metres about offshore western waters.
- Weather
- Sunny.
Wednesday 22 July
- Winds
- South to southeasterly 15 to 20 knots tending northeast to southeasterly during the morning then becoming variable about 10 knots during the afternoon.
- Seas
- Around 1 metre.
- 1st Swell
- West to southwesterly around 1 metre offshore.
- 2nd Swell
- Northwest to northeasterly below 1 metre inshore, increasing to around 1 metre offshore.
- Weather
- Sunny.
Please be awareWind 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.
Nearby Coastal Waters
- See detailed wind and wave forecasts on MetEye
- This forecast is also available via scheduled broadcasts on marine radio.
- Latest Coastal Observations
- Tide Predictions
- Marine Knowledge Centre - explanations and definitions
The next routine forecast will be issued at 7:01 am WST Monday.
Product IDW11230
