April in Bournemouth is the sunniest month of the year. In April, the weather in Bournemouth is typically warm. Average daily high temperature in April is about 12 degrees above zero. On average, Bournemouth has 11 rainy, 10 partly cloudy, 8 sunny, and 1 cloudy day in April. The rains are usually moderate. April as well as January, February, March, and October is considered the most uncomfortable time to visit Bournemouth.