7 day weather forecast

   Effective as of 2:00 AM Friday January 21 2022

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

Explanatory notes:

A prolonged heatwave with the very hot air mass over the region as the west coast trough remains near the west coast, with enhanced heating from subsidence below the upper level anticyclone aloft.

There is a significant chance that Perth will see 5 consecutive days with maximum temperatures above 40°C which will be Perth's longest 40°C and above spell on record. Prior to December 2021, Perth has never seen 4 or more consecutive 40°C days outside of February. The longest 40°C and above spell on record was 4 consecutive days in February 1933, February 2016 and December 2021. Perth's highest number of 40°C days in a month on record was 5 days in December 2021.

There is also a chance, depending on maximum temperatures on Sunday, which is dependent on how early the sea breeze onset is, that Perth will see 6 consecutive days with maximum temperatures at or above 38°C, which is the longest on record and was seen in December 2021.

A little high based cumulus in the afternoon and evening over the hills as conditional instability is released, however conditions will remain dry on the ground.

A little respite next week as the upper level anticyclone is dislodged by an upper level trough and slightly cooler air moves in from the southeast. It will likely still be hot with the west coast trough remaining offshore.

Friday January 21:

City:

23-41  Degrees Celsius

Very hot and sunny.

Chance of any rain:0%

Amount:Nil

Perth Metropolitan Area:

Very hot and sunny.Winds easterly 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.

Saturday January 22:

City:

24-40  Degrees Celsius

Very hot and sunny.

Chance of any rain:0%

Amount:Nil

Perth Metropolitan Area:

Very hot and sunny.Winds east-northeasterly at 10-20 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.

Sunday January 23:

City:

23-38  Degrees Celsius

Very hot and sunny.

Chance of any rain:0%

Amount:Nil

Perth Metropolitan Area:

Very hot and sunny.Light easterly winds shifting south-southwesterly at 20-35 km/h by afternoon.

Monday January 24:

City:

19-34  Degrees Celsius

Mostly sunny.

Chance of any rain:0%

Amount:Nil

Perth Metropolitan Area:

Mostly sunny.Winds southeasterly at 15-30 km/h.

Tuesday January 25:

City:

18-33  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 southeasterly in the afternoon.

Wednesday January 26:

City:

18-33  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 at 20-30 km/h in the afternoon.

Thursday January 27:

City:

19-33  Degrees Celsius

Mostly sunny.

Chance of any rain:5%

Amount:Nil

Perth Metropolitan Area:

Mostly sunny.Winds east-southeasterly at 20-30 km/h tending south-southwesterly in the afternoon.

Charts:

Figure1.

Figure 2.

Figure 3.

Figure 4.

No liabilities held. Some information on this site is sourced from the Australian Bureau of Meteorology. Weather icons are from the National Weather Service.