
If emissions continue to accelerate, Western Sydney can expect to endure up to 46 days per year over 35℃ by 2090, a new analysis from the Australia Institute finds. This is a fivefold increase from the historical average of just under nine days of extreme heat per year.
Western Sydney, home to around 2.5 million people, is highly vulnerable to extreme heat and is 8-10℃ hotter than east Sydney during heatwaves. The region is too far inland to benefit from coastal breezes, and lacks the altitude of the neighbouring Blue Mountains.