Puerto Iguazu's climate is characterized by mild winters and hot, humid summers. Winters are cool, with temperatures ranging from -2C to 31C in June and July, while springs and autumns bring slightly warmer temperatures, averaging around 20-25C. Summers are scorching, with temperatures often reaching 35C and above during the months of December, January, and February, but also experiencing mild days with temperatures dipping into single digits at night. Autumn and spring are relatively mild, with temperatures gradually warming up in September and October after a cool winter. Overall, the temperature variation throughout the year is significant, making Puerto Iguazu's climate quite distinct.