Christmas Day is set to be a warm one with temperatures forecast to reach the high 30s and low 40s in Mandurah, Rockingham and Perth.
According to the Bureau of Meteorology, Mandurah is set to hit 39C on Saturday and 37C on Sunday (Boxing Day).
Rockingham is tipped to reach 37C on Christmas Day and 35C on Boxing Day.
Perth residents will really feel the heat with Christmas Day forecast to reach 42C and 41C on Boxing Day.