January in Antananarivo is the rainiest and the cloudiest month of the year. In January, the weather in Antananarivo is typically warm. Average daily high temperature in January is about 25 degrees above zero. On average, Antananarivo has 24 rainy, 4 cloudy, and 3 partly cloudy days in January. The rains are usually heavy. January as well as February, March, and December is considered the most uncomfortable time to visit Antananarivo.