July in Puerto Madryn is the coldest month of the year. In July, the weather in Puerto Madryn is typically warm. Average daily high temperature in July is about 11 degrees above zero. On average, Puerto Madryn has 15 sunny, 13 partly cloudy, 2 rainy, and 1 cloudy day in July. The rains are usually light. July as well as June and August is considered the most uncomfortable time to visit Puerto Madryn.