Perth Local Waters Forecast: Two Rocks to Dawesville, inshore from Rottnest Island

View the current warnings for Western Australia

Forecast issued at 4:05 pm WST on Tuesday 11 May 2021.

Weather Situation

A high lies in the Bight with a weak ridge over the southeast of the State. A cold front is approaching the southwest corner and will move over the South West Land Division during Wednesday. A new ridge will begin to extend along the south coast behind the front during Wednesday and Thursday.

Forecast for Tuesday until midnight

Winds
North to northwesterly about 10 knots tending variable in the evening.
Seas
Below 1 metre.
Swell
Southwesterly 1 to 1.5 metres.
Weather
Partly cloudy.

Wednesday 12 May

Strong Wind Warning for Wednesday for Perth Local Waters

Winds
Variable about 10 knots becoming southeasterly 15 to 25 knots in the morning. Winds reaching up to 30 knots offshore in the late afternoon.
Seas
Below 1 metre, increasing to 1.5 to 2.5 metres during the morning.
Swell
Southwesterly 1 to 1.5 metres, decreasing to around 1 metre during the morning.
Weather
Cloudy. 70% chance of showers in the morning. The chance of a thunderstorm in the morning.

Thursday 13 May

Winds
Southeasterly 20 to 25 knots turning easterly 15 to 20 knots early in the morning.
Seas
1 to 2 metres.
Swell
Southwesterly 2 to 3 metres.
Weather
Mostly sunny.

Friday 14 May

Winds
Easterly 15 to 20 knots.
Seas
1 to 1.5 metres.
Swell
Southwesterly 1.5 to 2.5 metres, decreasing to 1 to 1.5 metres during the afternoon.
Weather
Partly cloudy.

Saturday 15 May

Winds
Easterly 15 to 20 knots turning northeasterly during the morning.
Seas
1 to 1.5 metres, decreasing to 1 metre during the afternoon or evening.
Swell
Southwesterly 1 to 1.5 metres.
Weather
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.

The next routine forecast will be issued at 4:00 am WST Wednesday.

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