July in Perros-Guirec is the sunniest month of the year. In July, the weather in Perros-Guirec is typically warm. Average daily high temperature in July is about 16 degrees above zero. On average, Perros-Guirec has 11 sunny, 10 partly cloudy, 9 rainy, and 1 cloudy day in July. The rains are usually light.