Leeuwin Coastal Waters Forecast: Cape Naturaliste to Walpole

View the current warnings for Western Australia

Forecast issued at 7:01 pm WST on Wednesday 9 September 2026.

Weather Situation

East to northeasterly winds continue with a high pressure system located in the Bight. Winds turning northwesterly on Friday as the high moves east ahead of a weak cold front moving over the southwest corner on Saturday. A second weak cold front will follow later Sunday.

Forecast for Wednesday until midnight

Winds
Northeasterly 10 to 15 knots, reaching up to 25 knots offshore east of Cape Leeuwin in the evening.
Seas
Below 1 metre, increasing to 1 to 2 metres offshore east of Cape Leeuwin.
1st Swell
Southwesterly 2.5 to 3 metres.
2nd Swell
East to southeasterly below 1 metre inshore, increasing to around 1 metre offshore.
Weather
Clear.

Thursday 10 September

Winds
Northeasterly 15 to 20 knots.
Seas
1 to 1.5 metres, decreasing to 1 metre around midday.
1st Swell
Southwesterly 2 to 3 metres.
2nd Swell
East to southeasterly below 1 metre inshore, increasing to 1 to 1.5 metres offshore east of Cape Leeuwin around midday.
Weather
Sunny.

Friday 11 September

Winds
Northeasterly 10 to 15 knots turning north to northwesterly 15 to 20 knots during the day.
Seas
Around 1 metre, increasing to 1 to 1.5 metres offshore during the morning.
1st Swell
Southwesterly 2.5 to 3 metres.
2nd Swell
East to southeasterly below 1 metre inshore, increasing to around 1 metre offshore east of Cape Leeuwin.
Weather
Partly cloudy.

Saturday 12 September

Winds
Northwesterly 15 to 20 knots increasing to 25 knots before turning westerly 15 to 20 knots during the morning.
Seas
1 to 1.5 metres, increasing to 1 to 2 metres offshore east of Cape Leeuwin.
Swell
Southwesterly 2.5 to 3 metres.
Weather
Partly cloudy. 95% chance of showers. The chance of a thunderstorm in the morning.

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.

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The next routine forecast will be issued at 1:01 am WST Thursday.

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