January in Brighton is the windiest and the coldest month of the year. In January, the weather in Brighton is typically cold. Average daily high temperature in January is about 7 degrees above zero. On average, Brighton has 11 rainy, 9 partly cloudy, 7 cloudy, and 4 sunny days in January. The rains are usually moderate. January as well as February, March, April, and October is considered the most uncomfortable time to visit Brighton.