May in Barinas is the rainiest month of the year. In May, the weather in Barinas is typically hot. Average daily high temperature in May is about 28 degrees above zero. On average, Barinas has 22 cloudy, 6 rainy, 2 sunny, and 1 partly cloudy day in May. The rains are usually light. May as well as April is considered the most uncomfortable time to visit Barinas.