January in Machu Picchu is the rainiest and the cloudiest month of the year. In January, the weather in Machu Picchu is typically warm. Average daily high temperature in January is about 16 degrees above zero. On average, Machu Picchu has 31 rainy days in January. The rains are usually heavy. January as well as February, March, April, and May is considered the most uncomfortable time to visit Machu Picchu.