San Marcos, Guatemala experiences a mild climate with slight variations throughout the year. Winters are generally cool and dry, with temperatures ranging from 0-35°C, while springs bring warmer temperatures, occasionally reaching highs of 36°C. Summers are hot but not excessively so, with average highs around 23-25°C. Autumn is similar to spring in terms of temperature, with mild days and cooler nights. Overall, the region's climate is characterized by moderate temperatures and low humidity year-round.