The cruise port of Perth is the fifth most popular cruise port in the South Pacific, featuring only one sailings yearly from Cunard to the South Pacific, along with other places.
Cruises leaving from Perth during the the peak season of winter are a bit more expensive than the the low season of fall. Overall sailings from Perth are fairly expensive compared to other ports. The chart below shows the monthly average cost per day for cruises from Perth (Cruises only depart from Perth between November and December).