San Bernardino is a city located in the Suchitepequez region of southwestern Guatemala. The municipality sits within this agricultural region known for coffee and cacao production in the highlands and piedmont areas of the country.
As a municipality in Suchitepequez, San Bernardino is part of Guatemala's southwestern region near the Pacific coastal plain. The area is characterized by the mountainous terrain typical of Guatemala's western highlands, though Suchitepequez itself encompasses both higher elevations and lower-lying zones suited to tropical agriculture.