Perth weather Christmas Day: Health authorities raise concerns over ‘extreme’ 40C forecast

Health authorities are sounding the alarm over forecast scorching temperatures for Christmas, warning West Australians to protect themselves against the heat.

Prolonged high temperatures can cause serious health issues even in otherwise healthy people, WA chief health officer Andrew Robertson said.

He added everyone should take the risks posed from heatwaves seriously.

“Extreme heat is Australia’s deadliest natural hazard,” Dr Robertson on Saturday said.

“We’re seeing longer, hotter and more frequent heatwaves and Western Australians should prepare early and take precautions when temperatures climb.”

The Bureau of Meteorology is predicting the Perth metropolitan area will hit 40C on Christmas Day, following 39C on Christmas Eve.

BOM meteorologist Jessica Lingard says the severe heatwave is likely for three days, leading up to Christmas.

At this stage, Perth will be the hottest city in the nation when families gather to celebrate on Christmas Day.

Dr Robertson said extreme heat could strain the heart and kidneys, cause dehydration and heat exhaustion, and, if untreated, can be life-threatening.

“Even fit and healthy people can be affected if they don’t take precautions,” he said.

“It’s important to stay hydrated, rest in cool places during the hottest part of the day and look after each other.”

WA Health advises drinking plenty of water, seeking shade or air-conditioning during the middle of the day, avoiding strenuous activity during the hottest parts of the day and wearing light, loose clothing and using sunscreen outdoors.

Dr Robertson encouraged people to check on vulnerable community members during prolonged periods of extreme heat.

“Check in on neighbours, older relatives, friends and those who are unwell or living alone - a quick call or visit can make all the difference,” he said.