In July, the weather in Cayo Coco is typically hot. Average daily high temperature in July is about 28 degrees above zero. On average, Cayo Coco has 16 rainy, 7 partly cloudy, 6 sunny, and 2 cloudy days in July. The rains are usually moderate. July as well as June, August, September, and October is considered the most uncomfortable time to visit Cayo Coco.