Chalatenango's climate is characterized by a relatively consistent temperature range throughout the year, with minimal seasonal variation. The temperature fluctuates between around 10°C and 39°C, but averages remain steady at approximately 26-27°C from March to May, before dropping slightly during June and July. Autumn and spring months see temperatures hover around 25-26°C, while winter months are generally cooler, averaging around 24-25°C. The warmer periods occur from April to September, with temperatures occasionally reaching over 35°C. Overall, the region's climate is mild, with no distinct cold or hot season.