Western Australia


Perth Coast: Two Rocks to Dawesville

Sunday 15 September

Wind forecasts are averages. Wind gusts can be 40 per cent stronger than the forecast, and stronger still in squalls and thunderstorms.

Perth and Melville Local Waters

Sunday 15 September

Synoptic Situation: A ridge of high pressure lies south of the state while a surface trough develops near the west coast.

Perth Local Waters

Sunday 15 September

Winds: South to southwesterly 15 to 20 knots turning easterly 10 to 15 knots in the late evening.
Seas: 1 to 1.5 metres.
Swell 1: Southwesterly around 3.0 metres, decreasing to 2 to 3 metres in the evening.
Weather: Clear.

Monday 16 September

Winds: Easterly 15 to 20 knots tending northeasterly 10 to 15 knots in the morning then shifting west to southwesterly below 10 knots in the middle of the day.
Seas: 1 to 1.5 metres, decreasing below 1 metre during the morning.
Swell 1: Southwesterly 2 to 3 metres, decreasing to 1.5 to 2 metres around midday.
Weather: Partly cloudy.

Tuesday 17 September

Winds: West to southwesterly about 10 knots.
Seas: Below 1 metre.
Swell 1: Southwesterly 1.5 to 2 metres, decreasing to 1 to 1.5 metres during the morning.
Weather: Partly cloudy.

Wednesday 18 September

Winds: West to northwesterly 15 to 20 knots turning southwesterly 25 to 30 knots during the evening.
Seas: Around 1 metre, increasing to 2 to 3 metres during the morning.
Swell 1: Southwesterly 1 to 1.5 metres, increasing to 1.5 to 2.5 metres during the morning.
Weather: Cloudy. 95% chance of showers. The chance of a thunderstorm in the afternoon and evening.

Thursday 19 September

Winds: Southwesterly 25 to 30 knots turning southerly 15 to 25 knots during the morning.
Seas: 2 to 3 metres, decreasing to 1.5 to 2 metres during the morning.
Swell 1: Southwesterly 2 to 4 metres.
Weather: Cloudy. 70% chance of showers.