July in Lázaro Cárdenas is the cloudiest and the hottest month of the year. In July, the weather in Lázaro Cárdenas is typically hot. Average daily high temperature in July is about 30 degrees above zero. On average, Lázaro Cárdenas has 19 rainy, 9 partly cloudy, 2 cloudy, and 1 sunny day in July. The rains are usually heavy. July as well as June, August, September, and October is considered the most uncomfortable time to visit Lázaro Cárdenas.