View the current warnings for Western Australia
Forecast issued at 1:11 am WST on Tuesday 18 August 2026.
Weather Situation
A cold front will continue moving eastward across the south coast this morning, contracting into the Bight later today. A weak ridge is developing over the west coast in the wake of this front. Another weak cold front will cross the southwest part of the State on Wednesday before a ridge settles over the south coast during Thursday and Friday.
Forecast for Tuesday until midnight
- Winds
- South to southeasterly 10 to 15 knots tending east to southeasterly in the early morning then turning southerly below 10 knots in the early afternoon.
- Seas
- Around 1 metre.
- Swell
- Southwesterly 3 to 5 metres.
- Weather
- Partly cloudy.
Wednesday 19 August
- Winds
- Southerly 10 to 15 knots turning southeasterly early in the morning. Winds reaching up to 20 knots offshore north of Denham in the late morning and early afternoon.
- Seas
- Around 1 metre.
- Swell
- Southwesterly 2.5 to 4 metres.
- Weather
- Cloudy. 60% chance of showers.
Thursday 20 August
- Winds
- Southeasterly 15 to 20 knots.
- Seas
- Around 1 metre, increasing to 1 to 1.5 metres offshore south of Denham.
- Swell
- Southwesterly 2 to 3 metres inshore, increasing to 3 to 4 metres offshore south of Denham.
- Weather
- Cloudy.
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 Tuesday.
Product IDW11250