January in Oruro is the rainiest month of the year. In January, the weather in Oruro is typically warm. Average daily high temperature in January is about 13 degrees above zero. On average, Oruro has 29 rainy, 1 sunny, and 1 cloudy day in January. The rains are usually moderate. January as well as February, March, and December is considered the most uncomfortable time to visit Oruro.