Perth Coastal Waters Forecast: Two Rocks to Dawesville, offshore from Rottnest Island

View the current warnings for Western Australia

Forecast updated at 7:36 am WST on Tuesday 14 July 2020.

Weather Situation

A relatively strong cold front crosses along the south coast on today. A weak ridge will then build through central parts of the State on Wednesday. Another moderately strong cold front will cross the west coast on Thursday afternoon and evening.

Forecast for Tuesday until midnight

Strong Wind Warning for Tuesday for Perth Coast

Winds
Westerly 25 to 30 knots decreasing to 15 to 25 knots in the morning. Squalls to 40 knots possible in showers during the morning.
Seas
2 to 3 metres, decreasing below 2 metres around midday.
Swell
Southwesterly 5 metres.
Weather
Partly cloudy. 80% chance of showers.
Caution
Tides likely to rise above the normal high tide mark.

Wednesday 15 July

Winds
Westerly 10 to 15 knots tending northwesterly 15 to 25 knots before dawn.
Seas
1 to 1.5 metres, increasing to 1 to 2 metres during the morning.
Swell
Southwesterly 4 to 5 metres.
Weather
Cloudy. 80% chance of showers.

Thursday 16 July

Winds
Northwesterly 25 to 35 knots turning westerly 20 to 25 knots during the afternoon.
Seas
2 metres, increasing to 2 to 3 metres during the morning.
1st Swell
West to southwesterly 4 metres, increasing to 4 to 6 metres during the morning.
2nd Swell
Northwesterly below 0.5 of a metre, increasing to near 1.5 metres in the afternoon and evening.
Weather
Cloudy. 95% chance of showers.
Caution
Dangerous surf conditions hazardous for coastal activities such as swimming, surfing and rock fishing. Tides may rise above the normal high tide mark.

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.

Nearby Coastal Waters

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The next routine forecast will be issued at 4:00 pm WST Tuesday.

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