Zacatlan's climate is characterized by mild temperatures with significant variability throughout the year. Winters, from December to February, are cool with average highs in the mid-teens Celsius and lows around freezing. Spring, from March to May, brings warmer days with temperatures often reaching 30°C, while nighttime temperatures remain relatively cool. Summer months, June to August, are mild, with temperatures rarely exceeding 28°C. Autumn, from September to November, sees a return to cooler temperatures, similar to those of winter.