April in New Bedford is the rainiest month of the year. In April, the weather in New Bedford is typically warm. Average daily high temperature in April is about 13 degrees above zero. On average, New Bedford has 11 rainy, 9 sunny, 6 partly cloudy, and 4 cloudy days in April. The rains are usually heavy. April as well as January, February, March, and November is considered the most uncomfortable time to visit New Bedford.