July in Avarua is the sunniest month of the year. In July, the weather in Avarua is typically warm. Average daily high temperature in July is about 23 degrees above zero. On average, Avarua has 14 sunny, 11 partly cloudy, and 6 rainy days in July. The rains are usually heavy. July as well as June and August is considered the most comfortable time to visit Avarua.