According to this report at the ABC, Australia is getting hotter.
Frankly this doesn’t suprise me. Here in sunny Brisbane, the weather patterns seem to have changed from the Good Old Days. Back about 30 years ago, from October through March, you could set your watch (non-digital) by the almost monsoonal rains that came at 3:00 pm. Not any more. Now Brisbane can expect a run of scorching, sweltering days, followed by one or more very violent storms.
When I spent a little time in the west of Queensland, you could see small rain clouds meandering across the plains, more-or-less following the water courses. The best guess is that was because that was where the trees were, and the temperature was slightly lower above the trees. Now, picture Brisbane: several hundred square miles of heat-reflecting roofs, with a huge amount of land covered over in heat-retaining tarmac. Surely this has to change the local weather patterns, if the air above the sprawling SE Queensland urban areas is heated above the norm, and kept hot by heat radiating from the roads all night.
All I know is that it makes it pleasant to sit in the (air-conditioned) car, and go to my (air-conditioned) office through the daylight hours.