August in Amnat Charoen is the rainiest month of the year. In August, the weather in Amnat Charoen is typically hot. Average daily high temperature in August is about 31 degrees above zero. On average, Amnat Charoen has 27 rainy and 4 cloudy days in August. The rains are usually heavy. August as well as April, May, June, and July is considered the most uncomfortable time to visit Amnat Charoen.