October in Potosi is the warmest month of the year. In October, the weather in Potosi is typically warm. Average daily high temperature in October is about 15 degrees above zero. On average, Potosi has 18 rainy, 7 partly cloudy, and 6 sunny days in October. The rains are usually moderate. October as well as January, February, March, and November is considered the most uncomfortable time to visit Potosi.