Perth weather: Christmas Day forecast temperature revised down for one of coolest on record

If you thought 25 degrees was cool, brace yourselves.

The Bureau of Meteorology has revised down the temperature forecast for Christmas Day — and you might even need a jumper.

On Wednesday, the Bureau forecast 25 degrees and partly cloudy conditions for December 25, with a chance of showers.

But, on Thursday, the Bureau has since changed that forecast to a cool 23 degrees. If correct, it will be the coolest Christmas Day in 39 years.

On December 25, 1985, the maximum temperature was just 22.5 degrees, while in 1987, it reached just 23.4 degrees.

A 10 per cent chance of rain is forecast, while those hanging out in the backyard in the evening might need to rug up.

The Bureau has forecast a low of just 15 degrees for Christmas Day.

Perth is forecast to reach 41 degrees on both Sunday and Monday, while the temperature is then expected to plummet, dropping 12 degrees by Christmas eve.

On Boxing Day, Perth is forecast a sunny day and 25 degrees, with a minimum temperature of just 13 degrees.

Perth recorded its hottest Christmas Day, and third-highest December maximum in 2021, with 42C, and the second-highest December temperature on Boxing Day with the mercury reaching a steamy 43C.

While Christmas may be a cool change, WA Chief Health Officer Andrew Robertson this week urged the community to take heatwave health warnings and advice seriously with extreme temperatures expected this summer.

“Extreme heat kills more people in Australia than all other natural disasters combined,” he said.

“And extreme weather events, including heatwaves, are becoming more frequent and intense due to climate change – meaning we will see longer, hotter and more intense heatwaves here in WA.’’

He urged people to stay hydrated and seek out somewhere to keep cool during the heat of the day.

Perth forecast

Friday: 35C, sunny

Saturday: 38C, sunny

Sunday: 41C, sunny

Monday: 41C, mostly sunny

Christmas eve: 29C, cloud clearing

Christmas Day: 23C, cloud clearing

Boxing Day: 25C, sunny