January in Charleville is the rainiest, the cloudiest, and the hottest month of the year. In January, the weather in Charleville is typically hot. Average daily high temperature in January is about 33 degrees above zero. On average, Charleville has 14 sunny, 14 partly cloudy, and 3 rainy days in January. The rains are usually heavy. January as well as February and December is considered the most uncomfortable time to visit Charleville.