April in Brighton is the rainiest month of the year. In April, the weather in Brighton is typically warm. Average daily high temperature in April is about 12 degrees above zero. On average, Brighton has 17 rainy, 5 sunny, 5 cloudy, and 3 partly cloudy days in April. The rains are usually heavy. April as well as March, October, November, and December is considered the most uncomfortable time to visit Brighton.