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

View the current warnings for Western Australia

Forecast issued at 4:01 am WST on Monday 31 August 2015.

Weather Situation

A cold front will affect southwestern parts of the State on Monday, and a ridge of high pressure will develops near the southwest coast in the wake of the front on Tuesday. On Wednesday and Thursday a high pressure system will move south of the State.

Forecast for Monday until midnight

Strong Wind Warning for Monday for Perth Local Waters

Winds
West to northwest 10 to 15 knots increasing to 15 to 25 knots during the morning, and then becoming southwesterly 20 to 25 knots in the afternoon. Winds reaching up to 30 knots in the evening.
Seas
1 to 1.5 metres, increasing to 1.5 to 2.5 metres during the morning.
Swell
West to southwesterly 2 to 3 metres.
Weather
Cloudy. 95% chance of showers. The chance of a thunderstorm in the morning and early afternoon.

Tuesday 1 September

Strong Wind Warning for Tuesday for Perth Local Waters

Winds
South to southwesterly 20 to 25 knots, reaching up to 30 knots early in the morning. Winds tending south to southeasterly 15 to 20 knots by late morning.
Seas
2 to 2.5 metres, decreasing to 1 to 1.5 metres during the morning.
Swell
Southwesterly 2 to 3 metres, decreasing to 1 to 2 metres around midday.
Weather
Cloudy. 60% chance of showers.

Wednesday 2 September

Winds
East to southeasterly 10 to 15 knots.
Seas
Around 1 metre, decreasing below 1 metre during the morning.
Swell
Southwesterly 1 to 1.5 metres.
Weather
Mostly sunny.

Thursday 3 September

Winds
East to southeasterly 10 to 15 knots tending east to northeasterly 15 to 20 knots during the morning then becoming variable about 10 knots during the afternoon.
Seas
1 to 1.5 metres, decreasing below 1 metre during the afternoon.
Swell
Southwesterly 1 to 1.5 metres.
Weather
Sunny.

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 pm WST Monday.

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