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

View the current warnings for Western Australia

Forecast issued at 10:00 am WST on Sunday 29 November 2020.

Weather Situation

A ridge of high pressure lies near the south coast with a high located in the Bight. A surface trough near the west coast will contract eastwards on Sunday afternoon and evening as a cold front approaches the southwest of the State. The front will move across the southwest of the State during Monday with a strong ridge developing in the wake of the front near the south coast.

Forecast for Sunday until midnight

Winds
Southwesterly 10 to 15 knots turning westerly 20 to 25 knots in the evening.
Seas
Around 1 metre.
Swell
Southwesterly 1.5 to 2 metres.
Weather
Partly cloudy.

Monday 30 November

Strong Wind Warning for Monday for Perth Coast

Winds
Southwesterly 20 to 25 knots, tending south to southwesterly 20 to 25 knots during the afternoon.
Seas
1.5 metres, increasing to 2 to 3 metres during the morning.
Swell
Southwesterly 2 to 3 metres, increasing to 3 to 5 metres during the morning.
Weather
Partly cloudy. 50% chance of showers.

Tuesday 1 December

Winds
Southeasterly 10 to 15 knots, tending southerly during the morning and increasing to south to southwesterly 20 to 25 knots during the afternoon and evening.
Seas
1 to 1.5 metres, increasing to 1.5 to 2.0 metres during the evening.
Swell
Southwesterly 3 to 5 metres, decreasing to 2.5 to 3 metres during the evening.
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 Sunday.

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