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 Sunday 19 November 2017.

Weather Situation

A weak cold front approaches Perth waters late Monday with a fresh southwest change. A ridge of high pressure quickly builds south of the state in its wake.

Forecast for Sunday until midnight

Winds
Southwesterly about 10 knots.
Seas
Below 1 metre.
Swell
Southwesterly 1 to 1.5 metres.
Weather
Clear.

Monday 20 November

Winds
West to southwesterly about 10 knots shifting south to southwesterly around 20 knots in the late afternoon or evening.
Seas
Below 1 metre, increasing to 1 to 1.5 metres by early evening.
Swell
Southwesterly 1 to 1.5 metres, increasing to 1.5 to 2.5 metres during the morning and afternoon.
Weather
Partly cloudy. 20% chance of a shower in the late afternoon and evening.

Tuesday 21 November

Winds
South to southeasterly 20 to 25 knots, easing briefly to 15 to 20 knots in the late morning, before becoming south to southwesterly 25 to 30 knots in the afternoon then tending southeasterly 20 to 25 knots in the late evening.
Seas
1.5 to 2 metres, decreasing to 1 to 1.5 metres during the morning, then increasing to 2 to 2.5 metres during the afternoon.
Swell
Southwesterly 1.5 to 2.5 metres.
Weather
20% chance of a shower in the morning. Sunny afternoon.

Wednesday 22 November

Winds
East to southeasterly 15 to 20 knots, easing in the late afternoon, before shifting south to southwesterly 20 to 25 knots in the afternoon before turning southeasterly 10 to 15 knots during the evening.
Seas
2 to 2.5 metres, decreasing to 1.5 to 2 metres during the morning, then increasing to 2 to 2.5 metres during the afternoon.
Swell
Southwesterly 1.5 to 2.5 metres.
Weather
Mostly sunny.

Thursday 23 November

Winds
Easterly 15 to 20 knots easing to about 10 knots during the late morning then becoming south to southwesterly 15 to 20 knots during the day.
Seas
1 to 1.5 metres.
Swell
Southwesterly 1 to 1.5 metres, decreasing to around 1 metre during the afternoon.
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 am WST Monday.

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