Weather information for Perth: 7 day weather forecast

Effective as of 4:00 PM Tuesday February 8 2022

Explanatory notes:

Fine conditions today and Wednesday with afternoon sea breezes with the subtropical high pressure ridge to the south and the west coast trough inland.

Becoming hot again on Thursday as hot air mass advects over the region with the west coast trough deepening offshore before moving inland on Friday bringing cooler conditions whilst tropical moisture moving down combined with atmospheric instability from steep vertical lapse rates with the hot air mass near the surface will result in thunderstorms developing inland such as over the hills and over the Wheatbelts, however, the marine temperature inversion and northwesterly steering flow should keep the city and coastal areas dry.

Significantly somewhat easterly gradient flow develops from Sunday into next working week with the subtropical high pressure ridge to the south, this could could confine the sea breeze to coastal areas or prevent the sea breeze development altogether, but there is still uncertainty on these details this far out.

The Mt Lawley site had seen the hottest January on record with a mean maximum temperature of 33.7°C beating the record of 33.5°C set in January 2012.

It was the hottest January at the official Perth station since January 1962.

Perth saw 6 consecutive 40+°C days, the longest such spell beating the previous record of 4 consecutive days which prior to December 2021 was not seen outside of February. 6 consecutive 40+°C days is also the longest such spell on record for any Australian capital city drawing with Adelaide in 2009 and 1908.

Six consecutive days with maximum temperatures of 41+ °C occurred at Perth Airport and Pearce RAAF which was their all-time record beating the previous record of 3 and 5 consecutive days respectively.

Bickley recorded 6 consecutive days with maximum temperatures of 38+°C, the longest such spell on record beating the record of 5 such consecutive days in January 2007.

Perth Metro's minimum temperature of 26.7 °C on the 19th was its highest minimum temperature for 7 years since 12 January 2014, the all time record of 29.7°C whilst Swanbourne saw it's highest January minimum temperature on record.

So far, the total number of 40+°C days this summer at the Mt Lawley site is 13, almost double the previous record of 7 such days for an entire summer and the current summer isn't even over yet.

Tuesday February 8:

City:

12-27 Degrees Celsius

Partly cloudy.

Chance of any rain:0%

Amount:Nil

Perth Metropolitan Area:

Partly cloudy.Light winds tending south-southwesterly at 20-30 km/h in the afternoon and evening becoming southerly at 10-20 km/h later at night.

Wednesday February 9:

City:

Sunny.

Chance of any rain:0%

Amount:Nil

Perth Metropolitan Area:

Sunny.Winds southeasterly at 10-20 km/h tending south-southwesterly at 20-30 km/h in the afternoon and evening.

Thursday February 10:

City:

Hot and sunny.

Chance of any rain:0%

Amount:Nil

Perth Metropolitan Area:

Very hot and sunny.Winds east-southeasterly at 20-30 km/h becoming easterly by morning becoming south-southwesterly at 20-30 km/h in the afternoon, easing to 10-20 km/h at night.

Friday February 11:

City:

Mostly sunny.

Chance of any rain:10%

Amount:Nil

Perth Metropolitan Area:

Mostly sunny.A slight(20%) chance of a shower or thunderstorm over the hills from afternoon.Light winds becoming southwesterly at 15-25 km/h by afternoon becoming south-southwesterly at night.

Saturday February 12:

City:

Mostly sunny.

Chance of any rain:10%

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 becoming southeasterly at 15-25 km/h at night.

Sunday February 13:

City: