July in Puerto Natales is the coldest month of the year. In July, the weather in Puerto Natales is typically cold. Average daily high temperature in July is about 3 degrees above zero. On average, Puerto Natales has 13 rainy, 8 cloudy, 6 partly cloudy, and 4 sunny days in July. The rains are usually moderate. July as well as January, February, March, and April is considered the most uncomfortable time to visit Puerto Natales.