Saturday: Westerly 10/15 knots, reaching up to 20 knots offshore west of Port Hedland in the late evening. Seas: Around 1 metre. Swell: Westerly below 1 metre. Sunday: Southwesterly 15/20 knots becoming variable about 10 knots in the morning then becoming west to southwesterly 15/20 knots in the middle of the day. Winds reaching up to 25 knots west of Port Hedland in the late evening. Seas: 1/1.5 metres, decreasing to 1 metre during the morning, then increasing to 1/2 metres during the afternoon. Swell: Westerly below 1 metre. Outlook Monday: Southwesterly 20/25 knots increasing to 20/30 knots before dawn then tending west to southwesterly 15/25 knots in the morning. Seas: 2/3 metres, decreasing to 1.5 metres around midday. Swell: Westerly below 1 metre, increasing to 1/1.5 metres west of Port Hedland around midday. Outlook Tuesday: Southerly 15/20 knots tending southeasterly 15/25 knots during the morning then tending northwest to southwesterly 10/15 knots during the evening. Seas: 1.5/2 metres, decreasing below 1 metre during the afternoon. Swell: Westerly around 1 metre, increasing to 1/1.5 metres west of Port Hedland.Issued Sat 16:01 WST
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.