Súchil is a mountainous municipality, the main mountain range is the Sierra Michis, a branch of the Sierra Madre Occidental that runs through the municipality in a north-south direction marking the border with the state of Zacatecas, the main elevations of the municipality are the Cerro del Jacal, the Cerro de la Gallina and the Cerro El Papantón.

[3] The northern area of Súchil has a Semi-dry temperate climate, while in the rest of the municipality the climate is classified as Sub-humid temperate with summer rainfall; [4] in the same way, the average annual temperature recorded in the northern area ranges from 16 to 18°C and in the remaining territory is 12 to 16°C; [5] Finally, the average rainfall in the northern area is 500 to 600 mm and the entire remaining municipality is 600 to 700 mm.

[6] Practically the entire municipality is covered by forests, except for its northeastern end where the territory is dedicated to agriculture, the main species found in the forest are pine and oak.

[7] To protect and preserve this important forested area, the southern end of the municipality is part of the La Michilía Biosphere Reserve, which extends into the neighboring municipality of Mezquital.

The main animal species that can be found in the municipality of Súchil are coyote, rabbit, squirrel, skunk, wild ducks, some species of smaller birds and in the Biosphere Reserve wolf, deer and wild boar.