December in Amnat Charoen is the windiest and the coldest month of the year. In December, the weather in Amnat Charoen is typically warm. Average daily high temperature in December is about 27 degrees above zero. On average, Amnat Charoen has 18 partly cloudy, 11 sunny, and 2 cloudy days in December. December as well as January is considered the most comfortable time to visit Amnat Charoen.