7 day weather forecast

  Effective as of 4:00 PM Monday December 27 2021

View the latest severe weather warnings from BOM at http://www.bom.gov.au/wa/warnings/ .

Explanatory notes:

Perth has seen the longest spell of consecutive 40+C days on record in December drawing with that in December 2019, 3 consecutive days. In addition, it was also the hottest Christmas Day on record for any Australian capital city and perhaps for any major city in the world. Conditions today were slightly cooler than on Christmas and Boxing Day due to some cloud cover and also the upper level trough displacing the upper level anticyclone and resulting subsidence heating.

Sea breeze occurrence tomorrow and on Wednesday leads to slightly lower maximum temperatures but still very hot with the hot air mass over the region.

The heatwave ends by Thursday as the west coast trough moves inland with the marine layer advecting onshore but not that much relief with the air mass aloft remaining quite hot.

Monday December 27:

City:

27-40  Degrees Celsius

Very hot.Partly cloudy.

Chance of any rain:10%

Amount:Nil

Perth Metropolitan Area:

Very hot.Partly cloudy.Winds east-northeasterly at 20-35 km/h easing to 15-25 km/h in the morning tending south-southwestery in the afternoon becoming southeasterly at 10-20 km/h night.Gusts in excess of 75 km/h possible over the hills and foothills during the early hours.

Tuesday December 28:

City:

25-39  Degrees Celsius

Very hot and mostly sunny.

Chance of any rain:0%

Amount:Nil

Perth Metropolitan Area:

Very hot and mostly sunny.Winds northeasterly at 15-25 km/h tending south-southwesterly at 20-30 km/h in the afternoon and evening becoming south-southeasterly at 10-20 km/h later at night.

Wednesday December 29:

City:

23-38  Degrees Celsius

Very hot and mostly sunny.

Chance of any rain:0%

Amount:Nil

Perth Metropolitan Area:

Very hot and mostly sunny.Light winds becoming northeasterly at 10-20 km/h in the morning shifting south-southwesterly at 20-30 km/h by afternoon, becoming southerly at 10-20 km/h later at night.

Thursday December 30:

City:

19-32  Degrees Celsius

Mostly sunny.

Chance of any rain:0%

Amount:Nil

Perth Metropolitan Area:

Mostly sunny.Winds southerly at 10-20 km/h tending southwesterly at 20-30 km/h in the afternoon and evening.

Friday December 31:

City:

20-33  Degrees Celsius

Sunny.

Chance of any rain:0%

Amount:Nil

Perth Metropolitan Area:

Sunny.Winds southeasterly at 15-25 km/h tending south-southwesterly at 20-35 km/h in the afternoon and evening.

Saturday January 1:

City:

18-32  Degrees Celsius

Mostly sunny.

Chance of any rain:0%

Amount:Nil

Perth Metropolitan Area:

Mostly sunny.Winds east-southeasterly at 15-25 km/h tending south-southwesterly at 20-35 km/h in the afternoon and evening.

Sunday January 2:

City:

17-34  Degrees Celsius

Sunny.

Chance of any rain:5%

Amount:Nil

Perth Metropolitan Area:

Sunny.Winds east-southeasterly at 20-30 km/h tending south-southwesterly at 15-25 km/h in the afternoon.

Monday January 3:

City:

20-35  Degrees Celsius

Mostly sunny.

Chance of any rain:5%

Amount:Nil

Perth Metropolitan Area:

Mostly sunny.Winds east-southeasterly at 15-25 km/h tending south-southwesterly in the afternoon.

Charts: