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

View the current warnings for Western Australia

Forecast issued at 4:00 am WST on Tuesday 24 May 2022.

Weather Situation

A deep low pressure system near the SW Capes is expected to move eastwards parallel to the southern WA coast during Tuesday morning, then weaken and move southeastwards during Tuesday afternoon. A weak front will sweep past the southwest coast on Wednesday and will be followed by a ridge of high pressure.

Forecast for Tuesday until midnight

Strong Wind Warning for Tuesday for Perth Coast

Winds
Southwesterly 20 to 30 knots decreasing to 15 to 25 knots later in the morning.
Seas
2.5 to 3 metres, decreasing to 1.5 to 2 metres during the morning, then decreasing to 1 metre by early evening.
Swell
West to southwesterly 6 to 7 metres decreasing to 4 to 5 metres around midday.
Weather
Partly cloudy. 50% chance of showers.
Caution
Dangerous surf conditions hazardous for coastal activities such as swimming, surfing and rock fishing.

Wednesday 25 May

Winds
South to southwesterly 10 to 15 knots decreasing to below 10 knots before dawn then becoming east to southeasterly early in the morning.
Seas
Below 1 metre.
Swell
Southwesterly 3 to 4 metres, decreasing to 2 to 3 metres during the morning.
Weather
Partly cloudy. 60% chance of showers.

Thursday 26 May

Winds
Easterly 10 to 15 knots decreasing to about 10 knots during the afternoon.
Seas
Below 1 metre.
Swell
Southwesterly 2 metres, increasing to 2 to 3 metres during the morning.
Weather
Partly 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

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The next routine forecast will be issued at 4:00 pm WST Tuesday.

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