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

View the current warnings for Western Australia

Forecast issued at 7:01 pm WST on Sunday 16 November 2025.

Weather Situation

A ridge sits across southern WA, with a west coast trough sitting offshore. An embedded low forms early this week about the Gascoyne coast, moving inland from midweek.

Forecast for Sunday until midnight

Winds
Southerly 15 to 25 knots.
Seas
1.5 to 2 metres.
Swell
Southwesterly 1.5 to 2 metres.
Weather
Clear.

Monday 17 November

Winds
East to southeasterly 15 to 20 knots turning southerly 15 to 25 knots in the late morning and early afternoon.
Seas
1 to 1.5 metres, decreasing to 1 metre during the morning, then increasing to 1 to 1.5 metres during the afternoon.
Swell
Southwesterly 1.5 to 2 metres, decreasing to 1.5 metres during the afternoon.
Weather
Sunny.

Tuesday 18 November

Winds
Southerly 15 to 20 knots turning southeasterly before dawn.
Seas
1.5 to 2 metres, decreasing to 1 to 1.5 metres during the morning, then decreasing below 1 metre around midday.
Swell
Southwesterly 1.5 to 2.5 metres.
Weather
Partly cloudy. The chance of a thunderstorm in the late afternoon and evening.

Wednesday 19 November

Winds
East to southeasterly 10 to 15 knots tending south to southeasterly 15 to 20 knots during the morning.
Seas
Around 1 metre.
Swell
Southwesterly 1.5 to 2 metres.
Weather
The chance of a thunderstorm in the morning. Sunny 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

NT - Beagle Bonaparte Gulf Coastal Waters Forecast WA - North Kimberley - Coastal Waters Forecast WA - West Kimberley - Coastal Waters Forecast WA - Pilbara Coast East - Coastal Waters Forecast WA - Pilbara Coast West - Coastal Waters Forecast WA - Ningaloo Coast - Coastal Waters Forecast WA - Gascoyne Coast - Coastal Waters Forecast WA - Geraldton Coast - Coastal Waters Forecast WA - Lancelin Coast - Coastal Waters Forecast WA - Melville Local Waters Forecast WA - Perth Local Waters Forecast WA - Perth Coast- Coastal Waters Forecast WA - Bunbury Geographe Coast - Coastal Waters Forecast SA - Far West Coast - Coastal Waters Forecast WA - Leeuwin Coast - Coastal Waters Forecast WA - Albany Coast - Coastal Waters Forecast WA - Esperance Coast - Coastal Waters Forecast WA - Eucla Coast - Coastal Waters Forecast

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

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