May in Thimphu is the windiest and the cloudiest month of the year. In May, the weather in Thimphu is typically warm. Average daily high temperature in May is about 14 degrees above zero. On average, Thimphu has 29 rainy and 2 partly cloudy days in May. The rains are usually heavy. May as well as March, April, June, and July is considered the most uncomfortable time to visit Thimphu.