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 17 January 2021.

Weather Situation

A surface trough lies near the west coast with a high pressure system south of the Bight continuing to slowly move east. The surface trough will continue to move eastwards over the coming days and is expected to progress inland on Tuesday.

Forecast for Sunday until midnight

Winds
South to southeasterly 10 to 15 knots turning easterly in the evening.
Seas
Around 1 metre.
Swell
Southwesterly below 1 metre.
Weather
Clear.

Monday 18 January

Winds
East to northeasterly 15 to 20 knots tending north to northeasterly 10 to 15 knots in the middle of the day then becoming east to northeasterly below 10 knots in the late afternoon.
Seas
Around 1 metre.
Swell
Southwesterly below 1 metre.
Weather
Partly cloudy. The chance of a thunderstorm.

Tuesday 19 January

Winds
Variable about 10 knots becoming west to southwesterly 10 to 15 knots in the middle of the day then decreasing to about 10 knots in the late evening.
Seas
Below 1 metre.
Swell
Southwesterly below 1 metre.
Weather
Mostly sunny. The chance of a thunderstorm in the morning.

Wednesday 20 January

Winds
Southwesterly 10 to 15 knots, increasing to around 20 knots in the afternoon. Winds turning southerly 15 to 20 knots during the evening.
Seas
Below 1 metre, increasing to 1 to 1.5 metres during the afternoon.
Swell
Southwesterly around 1 metre.
Weather
Partly cloudy.

Thursday 21 January

Winds
Southeasterly 10 to 15 knots, increasing to southwesterly around 20 knots in the afternoon. Winds turning southerly 15 to 20 knots during the evening.
Seas
1 to 1.5 metres.
Swell
Southwesterly around 1 metre, increasing to 1 to 1.5 metres during the afternoon.
Weather
Partly 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 Monday.

Product IDW11400