Overview
- The Bureau of Meteorology expects temperatures to climb to about 35°C by 9am and near 40°C by lunchtime on Christmas Day.
- An overnight minimum near 26°C would surpass Perth’s 1915 Christmas morning record of 25.9°C.
- Severe heatwave conditions have moved south from WA’s North West, and the official warning for Perth runs from Tuesday through Christmas Day.
- Inland suburbs such as Midland and Armadale are forecast around 43°C, while coastal areas including Joondalup, Cottesloe and Fremantle should sit near 38–39°C.
- Relief is expected on Boxing Day with a top near 27°C before temperatures rise back into the 30s over the weekend.