Most of the territory is flat with a few low hills with an average altitude of ten meters above sea level.
The Nacajuca River forms the municipality's border with Cunduacán.
The El Naranjo River forms the border with Nacajuca; the Cucuxchapa River forms the border with Paraíso and the Chiquistero River forms the border with Centla.

The lakes cover an area of 2,320 hectares.
The important lakes in the area include Pomposú, El Eslabón, La Negrita, San Agustín, El Provecho, La Tinaja and El Troncón.
The Pomposú Lake is located in the north of the municipality.
The waters are of various shades of green with palm trees surrounding it.
Fishing here can yield species such as bass, mojarra, tilapia and pejelagarto.

The climate is hot and humid with temperature changes during the year.
The average high temperature is 30.5C which occur in June with the coldest temperatures averaging 22.5C which occur in December and January.
Average annual rainfall is 1692mm per year but the rainiest month is October with an average of 696mm and only 20mm in April.
Relative humidity ranges between 75 and 86% during the year.
The windiest months are November and December, when fronts called “nortes” (because they come from the north) enter the state from the Gulf of Mexico.
During these times average wind speed is 32 km/hr, higher during storms.

The flat terrain and plentiful rainfall makes the area vulnerable to flooding.
In addition to the floods of 2007, which covered 80% of the state of Tabasco, other recent major floods include those in 1999 and 2010.
The 1999 flood was caused by a release of water from the Penitas hydroelectric dam to ease pressure on it and the 2010 flood was severe enough to warrant intervention by Mexico's National Commission for Human Rights Comisión Nacional de Derechos Humanos (CNDH).

Wildlife includes land and aquatic species such as parrots, macaws, storks, manatees and crocodiles.
In wetland areas, there are still wild mangroves.
Most of the territory is flat with a few low hills with an average altitude of ten meters above sea level. The Nacajuca River forms the municipality's border with Cunduacán. The El Naranjo River forms the border with Nacajuca; the Cucuxchapa River forms the border with Paraíso and the Chiquistero River forms the border with Centla.
The lakes cover an area of 2,320 hectares. The important lakes in the area include Pomposú, El Eslabón, La Negrita, San Agustín, El Provecho, La Tinaja and El Troncón. The Pomposú Lake is located in the north of the municipality. The waters are of various shades of green with palm trees surrounding it. Fishing here can yield species such as bass, mojarra, tilapia and pejelagarto.
The climate is hot and humid with temperature changes during the year. The average high temperature is 30.5C which occur in June with the coldest temperatures averaging 22.5C which occur in December and January. Average annual rainfall is 1692mm per year but the rainiest month is October with an average of 696mm and only 20mm in April. Relative humidity ranges between 75 and 86% during the year. The windiest months are November and December, when fronts called “nortes” (because they come from the north) enter the state from the Gulf of Mexico. During these times average wind speed is 32 km/hr, higher during storms.
The flat terrain and plentiful rainfall makes the area vulnerable to flooding. In addition to the floods of 2007, which covered 80% of the state of Tabasco, other recent major floods include those in 1999 and 2010. The 1999 flood was caused by a release of water from the Penitas hydroelectric dam to ease pressure on it and the 2010 flood was severe enough to warrant intervention by Mexico's National Commission for Human Rights Comisión Nacional de Derechos Humanos (CNDH).
Wildlife includes land and aquatic species such as parrots, macaws, storks, manatees and crocodiles. In wetland areas, there are still wild mangroves.
Jalpa de Méndez