January in Andahuaylas is the rainiest and the cloudiest month of the year. In January, the weather in Andahuaylas is typically warm. Average daily high temperature in January is about 12 degrees above zero. On average, Andahuaylas has 31 rainy days in January. The rains are usually heavy. January as well as February, March, April, and October is considered the most uncomfortable time to visit Andahuaylas.