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Ben Domensino, 19 Jan 2022, 3:00 AM UTC

Perth on track for most 40C summer days on record

Perth on track for most 40C summer days on record

Perth is having an exceptionally hot summer and could soon break its record for the most 40ºC days in a single season.

A Severe Heatwave is gripping Australia’s west coast this week as hot inland air flows towards a stubborn West Coast Trough.

Image: Forecast surface air temperature on Wednesday afternoon, showing hot air along Australia's west coast.

This setup allowed the temperature to reach 40.8°C in the city on Tuesday and the mercury is forecast to hit 41°C on Wednesday.

If Perth does reach 40°C on Wednesday, it will be the seventh day at or above 40°C so far this summer, matching the city’s summertime record from 2015/16.

If Perth manages to reach eight days at or above 40°C before the end of February, it will be a new record for summer.

This week’s heatwave will last until the weekend and with tops of 39°C on the forecast between Thursday and Saturday, the record could be challenged sooner rather than later.

Perth’s highest daily temperature on record was 46.2°C in February 1991. The hottest day so far this season was 43.5°C on December 26.

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