July in New Bern is the hottest month of the year. In July, the weather in New Bern is typically hot. Average daily high temperature in July is about 31 degrees above zero. On average, New Bern has 14 rainy, 10 sunny, and 7 partly cloudy days in July. The rains are usually heavy. July as well as January, June, and August is considered the most uncomfortable time to visit New Bern.