In June, the weather in Le Grau-Du-Roi is typically warm. Average daily high temperature in June is about 24 degrees above zero. On average, Le Grau-Du-Roi has 20 sunny, 7 partly cloudy, and 3 rainy days in June. The rains are usually moderate. June as well as July, August, and September is considered the most comfortable time to visit Le Grau-Du-Roi.