August in Nakhon Ratchasima is the rainiest and the cloudiest month of the year. In August, the weather in Nakhon Ratchasima is typically hot. Average daily high temperature in August is about 30 degrees above zero. On average, Nakhon Ratchasima has 31 rainy days in August. The rains are usually heavy. August as well as May, June, July, and September is considered the most uncomfortable time to visit Nakhon Ratchasima.