July in Koro is the windiest and the coldest month of the year. In July, the weather in Koro is typically warm. Average daily high temperature in July is about 25 degrees above zero. On average, Koro has 9 sunny, 9 partly cloudy, 7 cloudy, and 6 rainy days in July. The rains are usually heavy. July as well as August is considered the most comfortable time to visit Koro.