July in Avilés is the sunniest month of the year. In July, the weather in Avilés is typically warm. Average daily high temperature in July is about 20 degrees above zero. On average, Avilés has 19 sunny, 11 partly cloudy, and 1 rainy day in July. The rains are usually light. July as well as August and September is considered the most comfortable time to visit Avilés.