April in Fontvieille is the rainiest and the cloudiest month of the year. In April, the weather in Fontvieille is typically warm. Average daily high temperature in April is about 15 degrees above zero. On average, Fontvieille has 12 rainy, 9 partly cloudy, 8 sunny, and 1 cloudy day in April. The rains are usually heavy. April as well as January, February, March, and November is considered the most uncomfortable time to visit Fontvieille.