July in Fowey is the warmest month of the year. In July, the weather in Fowey is typically warm. Average daily high temperature in July is about 18 degrees above zero. On average, Fowey has 20 rainy, 7 sunny, 3 partly cloudy, and 1 cloudy day in July. The rains are usually heavy. July as well as January, February, March, and October is considered the most uncomfortable time to visit Fowey.