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

View the current warnings for Western Australia

Forecast issued at 10:00 pm WST on Thursday 21 August 2014.

Weather Situation

A ridge of high pressure will develop over the southern half of the state on Friday and will remain fairly stationary over the next few days.

Forecast for Thursday until midnight

Winds
Westerly 20 to 25 knots.
Seas
1.5 to 2 metres.
Swell
Westerly 2 to 2.5 metres.

Friday 22 August

Winds
Westerly 20 to 25 knots tending southwesterly 15 to 20 knots early in the morning then becoming variable about 10 knots in the middle of the day.
Seas
1.5 to 2.5 metres, decreasing below 1 metre during the morning.
Swell
Westerly 2 to 2.5 metres, increasing to 2 to 4 metres during the morning, then tending west to southwesterly 3 to 4 metres around midday.

Saturday 23 August

Winds
East to northeasterly below 10 knots becoming south to southwesterly in the middle of the day then becoming southeasterly in the evening.
Seas
Below 0.5 metres.
Swell
West to southwesterly 2.5 to 4 metres, decreasing to 2.5 to 3 metres by early evening.

Sunday 24 August

Winds
Easterly below 10 knots becoming north to northeasterly during the morning then becoming west to northwesterly during the day.
Seas
Below 1 metre.
Swell
West to southwesterly 2 to 3 metres.

Monday 25 August

Winds
Northwesterly 10 to 15 knots turning northerly 15 to 20 knots during the morning.
Seas
Below 1 metre, increasing to 1 to 1.5 metres during the morning.
Swell
Westerly 2 to 2.5 metres.

Please be awareWind gusts can be 40 percent stronger than the averages given here, and maximum waves may be up to twice the height. Wind warnings are issued for today and tomorrow and describe the highest category of wind warning for that day.

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

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