July in Birmingham is the rainiest month of the year. In July, the weather in Birmingham is typically hot. Average daily high temperature in July is about 32 degrees above zero. On average, Birmingham has 15 rainy, 8 sunny, 7 partly cloudy, and 1 cloudy day in July. The rains are usually heavy. July as well as January, June, August, and December is considered the most uncomfortable time to visit Birmingham.