This FACT indicates the number of art showings at various galleries throughout each Australian capital city. These numbers were taken from the Art Almanac which publishes listings of exhibition schedules over a monthly period.
From the information gathered, Melbourne - unofficially referred to as the Australian capital of culture - has the most art gallery exhibitions on offer throughout the months of March & April at 165 showings. Darwin has the least, at 6 showings. The data is from the year 2018.