April in Aylesbury is the sunniest month of the year. In April, the weather in Aylesbury is typically warm. Average daily high temperature in April is about 12 degrees above zero. On average, Aylesbury has 13 rainy, 7 sunny, 6 partly cloudy, and 4 cloudy days in April. The rains are usually moderate. April as well as January, February, March, and August is considered the most uncomfortable time to visit Aylesbury.