May in Coober Pedy is the rainiest month of the year. In May, the weather in Coober Pedy is typically warm. Average daily high temperature in May is about 21 degrees above zero. On average, Coober Pedy has 25 sunny, 5 partly cloudy, and 1 rainy day in May. The rains are usually light. May as well as April, August, and September is considered the most comfortable time to visit Coober Pedy.