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

View the current warnings for Western Australia

Forecast issued at 1:01 am WST on Saturday 6 June 2026.

Weather Situation

A trough near the west coast is moving inland before stagnating over the Goldfields and inland Gascoyne during this weekend. A pair of cold fronts will quickly sweep across the west coast and south coast early next week.

Forecast for Saturday until midnight

Winds
Variable below 10 knots.
Seas
Below 0.5 metres.
Swell
Southwesterly 2.5 to 3 metres.
Weather
Sunny.

Sunday 7 June

Winds
Variable about 10 knots becoming northwesterly 15 to 20 knots in the morning.
Seas
Below 1 metre, increasing to 1 to 1.5 metres around midday.
Swell
Southwesterly 2.5 to 3 metres.
Weather
Partly cloudy. 70% chance of showers.

Monday 8 June

Winds
Northwesterly 15 to 20 knots turning westerly 25 to 30 knots during the afternoon.
Seas
1.5 to 2.5 metres.
Swell
Southwesterly 2.5 to 3 metres, increasing to 4 metres during the afternoon.
Weather
Cloudy. Near 100% chance of showers. A thunderstorm likely in the morning and afternoon.

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 7:01 am WST Saturday.

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