Sumpango, Guatemala experiences a mild climate year-round. During the dry season, which spans from December to May, temperatures are relatively consistent, averaging around 20°C, with slight variations throughout the months. The warmer months of March and April see slightly higher averages, while June and July experience a brief dip in temperature before leveling out again. From June to September, the climate remains stable, with minimal fluctuation in temperature. As the dry season comes to an end, temperatures begin to decrease, culminating in a cooler period from November to January.