Tasmania is consistently the wettest state, while South Australia is usually the driest. Avg. Annual Rainfall (Approx.) Climate Type Tropical (Wet/Dry) Sydney Humid Subtropical Perth Mediterranean Melbourne Adelaide Semi-arid/Mediterranean Alice Springs Arid (Desert)
Cities like Sydney, Melbourne, and Perth have more balanced rainfall. Sydney is surprisingly wet, averaging around 1,215mm, while Melbourne is known for its "four seasons in one day" and a steadier average of 648mm. Seasonal Factors and Drivers what is the average rainfall in australia