Last week, Western Australia underwent a brief heatwave. Perth, the capital city, reached 41.9C (107.4F) on Wednesday, 42.7C on Thursday and 40.4C on Friday. While it is summertime in Australia, three consecutive days with temperatures in excess of 40C marks a considerable deviation from the seasonal average, which sits at about 31.5C.
Temperatures returned much closer to the seasonal average throughout the weekend, with maximums in the mid- to high-20s. However, over the coming days, the heat is expected to return, with temperatures in excess of 40C expected to persist from Thursday to Saturday, before easing on Sunday. It is not just the maximum temperatures that can cause discomfort, but also the minimum, which, over the course of the second heatwave, will probably be about 25C, around the maximum seen over the previous weekend.
