March in Koror is the sunniest month of the year. In March, the weather in Koror is typically warm. Average daily high temperature in March is about 27 degrees above zero. On average, Koror has 23 rainy, 4 sunny, 3 partly cloudy, and 1 cloudy day in March. The rains are usually heavy. March as well as January, February, April, and May is considered the most uncomfortable time to visit Koror.