December in Antsirabe is the hottest month of the year. In December, the weather in Antsirabe is typically hot. Average daily high temperature in December is about 29 degrees above zero. On average, Antsirabe has 24 rainy, 4 sunny, and 3 partly cloudy days in December. The rains are usually heavy. December as well as January, February, March, and April is considered the most uncomfortable time to visit Antsirabe.