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

View the current warnings for Western Australia

Forecast issued at 4:00 pm WST on Friday 19 August 2022.

Weather Situation

A firm ridge of high pressure extends across southern WA. A high pressure system over the South West Land Division will move east on Saturday. A weak cold front will brush past the south coast on Sunday and will be followed by another firm ridge of high pressure on Monday.

Forecast for Friday until midnight

Winds
Southerly about 10 knots becoming southeasterly in the late evening.
Seas
Below 0.5 metres.
Swell
Southwesterly 2 to 2.5 metres.
Weather
Cloudy.

Saturday 20 August

Winds
East to southeasterly about 10 knots becoming northeasterly in the morning then becoming south to southeasterly during the afternoon.
Seas
Below 1 metre.
Swell
Southwesterly 1.5 to 2.5 metres.
Weather
Cloudy.

Sunday 21 August

Winds
South to southeasterly 15 to 25 knots.
Seas
Below 1 metre, increasing to 1 to 1.5 metres during the afternoon.
Swell
Southwesterly 1.5 to 2 metres.
Weather
Partly cloudy.

Monday 22 August

Winds
Southeasterly 15 to 25 knots turning easterly 15 to 20 knots during the afternoon.
Seas
1 to 2 metres, decreasing to 1 to 1.5 metres during the afternoon.
Swell
Southwesterly 1 to 1.5 metres, increasing to 1.5 to 2 metres during the morning.
Weather
Partly cloudy.

Tuesday 23 August

Winds
Easterly 15 to 25 knots.
Seas
1 to 1.5 metres, decreasing to 1 metre during the afternoon.
Swell
Southwesterly 1.5 to 2 metres, decreasing to 1 to 1.5 metres during the afternoon.
Weather
Mostly sunny.

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 Saturday.

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