May in Narathiwat is the hottest month of the year. In May, the weather in Narathiwat is typically hot. Average daily high temperature in May is about 31 degrees above zero. On average, Narathiwat has 29 rainy and 2 sunny days in May. The rains are usually heavy. May as well as January, April, June, and July is considered the most uncomfortable time to visit Narathiwat.