Amatitlan's climate is characterized by a relatively stable temperature range throughout the year, with averages usually hovering around 22-23°C. The warmest months are April and May, with temperatures occasionally reaching as high as 37°C, while the cooler months occur from December to February, with temperatures ranging from 9-12°C. From June to September, temperatures remain relatively constant, fluctuating between 15-35°C, while the period from October to November sees a slight drop in temperature, averaging around 21°C. Overall, Amatitlan's climate is warm and subtropical, with little seasonal variation.