Perth is sweltering through the eighth heatwave of the summer and autumn seasons, the first time such an event has happened since records started being kept in 1897.
The Bureau of Meteorology defines a heatwave as three consecutive days at or above 35 degrees Celsius.
In the summer and autumn of 1977/78, Perth sweltered through seven heatwaves.
It is also only the second time in recorded history there have been two heatwaves in Perth in March.
The last time was in 1988.
Another hot day is forecast for tomorrow with a maximum of 37 degrees.
It is expected to cool down to the low 30s for the remainder of the week.
