The Dos Bocas, Cayo Arcas and Coatzacoalcos ports, which ship out the majority of Mexico's crude exports, all closed on Saturday as a cold front moved into the Gulf of Mexico.
The three ports handle nearly 97 percent of Mexico's oil exports, according to the Transportation Ministry.
Weather-related port closures are not uncommon for Mexico's Gulf coast ports, but prolonged shutdowns can force state oil company Pemex to curtail output as it has only limited onshore storage capacity.