January in Koro is the rainiest and the cloudiest month of the year. In January, the weather in Koro is typically hot. Average daily high temperature in January is about 28 degrees above zero. On average, Koro has 25 rainy, 4 sunny, and 2 cloudy days in January. The rains are usually heavy. January as well as February, March, April, and November is considered the most uncomfortable time to visit Koro.