South to southeasterly 10/15 knots decreasing to about 10 knots in the evening. Seas: 1/1.5 metres, decreasing below 1 metre around midday. Swell: Southerly 2/2.5 metres. Caution: Deceptively powerful surf conditions are expected to be hazardous for coastal activities such as crossing bars by boat and rock fishing. Outlook Monday: South to southwesterly about 10 knots tending east to northeasterly 10/15 knots in the middle of the day then becoming north to northeasterly about 10 knots in the late evening. Winds reaching up to 20 knots south of Point Perpendicular in the late afternoon. Seas: Around 1 metre, increasing to 1/1.5 metres south of Point Perpendicular during the afternoon. Swell: Southerly 1.5/2.5 metres, decreasing to 1/1.5 metres during the afternoon. Outlook Tuesday: North to northwesterly about 10 knots tending north to northeasterly 15/20 knots during the day. Seas: Below 1 metre, increasing to 1/2 metres during the afternoon. Swell: Southerly around 1 metre.Issued Sun 04:10 EST
16:39 EST The mercury soared in the nation's southwest today with Perth recording its hottest September day on record, however heavy rain and cooler temperatures will arrive on Sunday.