Swimming in Mexico in september 2025 Sea temperature by city in september

In september in Mexico swimming conditions vary by city. Details below:

In september in Acapulco, Cancun, Los Cabos, Chetumal, Mazatlán, Puerto Chiapas (Chiapas), Puerto Vallarta, Barra Vieja, Champotón, Chiquilá, Costa Careyes (Jalisco), Cozumel, El Cuyo, El Mezquital, Guaymas, Holbox, Isla Blanca, Isla Contoy, Isla Espirito Santo, Lázaro Cárdenas, Majahual, Morón, Papanoa, Paraiso, Pérula, Playa Bagdad, Playa del Carmen, Progreso, Puerto Aventuras, Puerto Morelos, Punta Maldonado (Guerrero), Riviera Maya, Sabancuy, San José del Cabo, Seybaplaya, Sisal, Tamiahua, Tecolutla, Tulum, Tuxpan, Yelapa, Akumal, Anton Lizardo, Atoyac de Alvarez, Boca del Rio, Campeche, Catemaco, Celestun, Chelem, Ciudad del Carmen, Coatzacoalcos, Coyuca de Benitez, Frontera, Heroica Alvarado, Huatabampo, Isla Mujeres, La Paz, Loreto, Los Mochis, Manzanillo, Puerto Peñasco, San Felipe, Tampico, Tecoman, Todos Santos, Veracruz, Villa Zempoala and Ixtapa-Zihuatanejo, swimming conditions are perfect! With water reaching a maximum of 88°F and an average of 86°F, going in the water (and staying there!) feels great.

Swimming in september in Tijuana, Ensenada and Rosarito is possible but the sea is generally cool. So though the sea temperature may sometimes reach 70°F, it can also go as low as 64°F. Note that the average is 67°F.