Had to look up "arvo".
I'm looking at weather.com and the Adelaide temps are crazy. 73, 71, 72, 79, 95, 102, 83, 75 ... Nice weather, then bam! it sneaks a 102 in on you. Looks pretty nice most of the time though. Maybe the cool temps are only right up against the coast?
That shop must really hold the heat. The hottest temp I've ever experienced was 115F driving through the New Mexico desert with the family in a car with no air conditioning. The breeze through the open windows just felt like a blast furnace, and we had to turn on the heater to keep the car from overheating.
All of the news from Australia here has been the 117F temps in Sydney that were (are?) killing the flying fox bats.