Perth Coastal Waters Forecast: Two Rocks to Dawesville, offshore from Rottnest Island

View the current warnings for Western Australia

Forecast issued at 7:01 am WST on Tuesday 3 March 2026.

Weather Situation

A ridge of high pressure extends over western and southern coastal waters. A trough is expected to redevelop overland, moving to the west coast by Wednesday.

Forecast for Tuesday until midnight

Strong Wind Warning for Tuesday for Perth Coast

Winds
Southeasterly 15 to 20 knots tending southerly 15 to 25 knots in the middle of the day then increasing to 20 to 30 knots in the evening.
Seas
1 to 2 metres.
Swell
Southwesterly 1.5 to 2.5 metres.
Weather
Sunny.

Wednesday 4 March

Strong Wind Warning for Wednesday for Perth Coast

Winds
South to southeasterly 20 to 30 knots becoming southeasterly 15 to 25 knots before dawn then tending southerly in the middle of the day.
Seas
1.5 to 2.5 metres, decreasing to 1 to 1.5 metres during the morning.
Swell
Southwesterly 1.5 to 2.5 metres.
Weather
Sunny.

Thursday 5 March

Winds
Southerly 15 to 20 knots.
Seas
1.5 to 2 metres, decreasing to 1 to 1.5 metres during the morning.
Swell
Southwesterly 1.5 to 2.5 metres.
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

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The next routine forecast will be issued at 1:01 pm WST Tuesday.

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