May in Gatesville is the rainiest month of the year. In May, the weather in Gatesville is typically hot. Average daily high temperature in May is about 29 degrees above zero. On average, Gatesville has 11 rainy, 10 sunny, 8 partly cloudy, and 2 cloudy days in May. The rains are usually heavy. May as well as June, July, and August is considered the most uncomfortable time to visit Gatesville.