March in Libreville is the hottest month of the year. In March, the weather in Libreville is typically hot. Average daily high temperature in March is about 28 degrees above zero. On average, Libreville has 28 rainy, 2 partly cloudy, and 1 cloudy day in March. The rains are usually heavy. March as well as January, February, April, and May is considered the most uncomfortable time to visit Libreville.