In June, the weather in Aix-en-Provence is typically warm. Average daily high temperature in June is about 27 degrees above zero. On average, Aix-en-Provence has 20 sunny, 5 rainy, and 5 partly cloudy days in June. The rains are usually light. June as well as July, August, and September is considered the most comfortable time to visit Aix-en-Provence.