In May, the weather in Kamphaeng Phet is typically hot. Average daily high temperature in May is about 34 degrees above zero. On average, Kamphaeng Phet has 16 rainy, 9 cloudy, 4 partly cloudy, and 2 sunny days in May. The rains are usually heavy. May as well as June, July, August, and September is considered the most uncomfortable time to visit Kamphaeng Phet.