"Extreme Heat" To Hit Western Sydney With Huge Increase In Days Over 35C

Extreme heat could pose a serious threat to the well-being of people living in western Sydney, according to a new analysis which projects the number of days over 35 degrees in the region will increase fivefold.

The Australia Institute's Western Sydney HeatWatch report, published on Tuesday, predicts extreme heat days over 35 degrees could increase from the historical average of 10.6 days per year to up to 52 days a year by 2090 if emissions are not reduced.

The report, which uses CSIRO and Bureau of Meteorology modelling, says the region already experiences temperatures six to 10 degrees higher in extreme heatwaves than Sydney's east as a result of its geography and urban environment.

"People living and working in western Sydney will endure many more hot days than people in other parts of the state will endure - and western Sydney will become an increasingly undesirable place to live relative to cooler parts of NSW," the report says.

The area has already seen extreme heat days increase from 9.5 days in the 1970s to 15.4 days in the past decade.

That could more than triple by 2090.

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