July in Corn Islands is the rainiest and the cloudiest month of the year. In July, the weather in Corn Islands is typically warm. Average daily high temperature in July is about 27 degrees above zero. On average, Corn Islands has 30 rainy and 1 cloudy day in July. The rains are usually heavy. July as well as January, May, June, and August is considered the most uncomfortable time to visit Corn Islands.