July in Puerto Mont is the cloudiest and the coldest month of the year. In July, the weather in Puerto Mont is typically warm. Average daily high temperature in July is about 10 degrees above zero. On average, Puerto Mont has 20 rainy, 7 partly cloudy, 3 cloudy, and 1 sunny day in July. The rains are usually heavy. July as well as May, June, August, and September is considered the most uncomfortable time to visit Puerto Mont.