June in San Miguel de Cozumel is the cloudiest month of the year. In June, the weather in San Miguel de Cozumel is typically hot. Average daily high temperature in June is about 29 degrees above zero. On average, San Miguel de Cozumel has 20 rainy, 7 sunny, 2 partly cloudy, and 1 cloudy day in June. The rains are usually heavy. June as well as August, September, and October is considered the most uncomfortable time to visit San Miguel de Cozumel.