March in Avarua is the warmest month of the year. In March, the weather in Avarua is typically warm. Average daily high temperature in March is about 27 degrees above zero. On average, Avarua has 18 rainy, 7 sunny, 5 partly cloudy, and 1 cloudy day in March. The rains are usually heavy. March as well as January, February, and December is considered the most uncomfortable time to visit Avarua.