Zarate's climate is characterized by mild temperatures during spring and autumn, with average highs ranging from 25-33°C in January and September-November. Winters are cool, with average lows around 0-3°C in June-August, while summers are warm to hot, with temperatures occasionally reaching up to 27°C in December. Autumn brings a slight drop in temperature, with averages in the mid-teens, while spring sees a gradual warming trend, but still relatively mild overall. The coldest month is July, with an average low of 1°C, and the warmest months are January and November, both averaging around 20-23°C.