The Bureau of Meteorology has issued a strong wind warning for Good Friday in Perth and the Bunbury-Busselton area.
Winds averaging from 48 to 60 kilometres per hour are expected on the coast.
For the rest of the South West region, conditions on Friday will be mostly sunny with temperatures ranging from 24 to 29 degrees.
Temperatures in the low-to-mid-20s are expected for the rest of the long weekend.
Weather conditions for Saturday and Sunday are expected to be cloudy with a chance of showers.