May in Thanjavur is the hottest month of the year. In May, the weather in Thanjavur is typically hot. Average daily high temperature in May is about 38 degrees above zero. On average, Thanjavur has 12 rainy, 7 partly cloudy, 6 sunny, and 6 cloudy days in May. The rains are usually moderate. May as well as June, July, August, and September is considered the most uncomfortable time to visit Thanjavur.