July in Vilhena is the sunniest month of the year. In July, the weather in Vilhena is typically hot. Average daily high temperature in July is about 29 degrees above zero. On average, Vilhena has 26 sunny, 4 partly cloudy, and 1 rainy day in July. The rains are usually light. July as well as June is considered the most comfortable time to visit Vilhena.