May in Krabi is the cloudiest month of the year. In May, the weather in Krabi is typically hot. Average daily high temperature in May is about 31 degrees above zero. On average, Krabi has 28 rainy, 2 cloudy, and 1 partly cloudy day in May. The rains are usually heavy. May as well as March, April, June, and July is considered the most uncomfortable time to visit Krabi.