The Mexico resorts with the warmest sea water temperature in December are Puerto Arista, Luces en el Mar and Barra de Potosi.
Below you can see a list of all popular Mexico resorts and information about sea water temperature in December for the last two years.
| Resort Name | December 2025 | December 2024 | December 2023 |
|---|---|---|---|
| Puerto Arista | 89.4°F | 87.0°F | 88.6°F |
| Luces en el Mar | 88.4°F | 87.6°F | 89.2°F |
| Barra de Potosi | 88.2°F | 87.0°F | 88.8°F |
| Acapulco | 88.2°F | 87.4°F | 89.1°F |
| Troncones | 88.2°F | 86.9°F | 88.4°F |
| Zihuatanejo | 88.0°F | 86.7°F | 88.6°F |
| San Patricio | 87.9°F | 85.9°F | 86.4°F |
| La Manzanilla | 87.9°F | 85.4°F | 86.2°F |
| Caleta de Campos | 87.8°F | 86.1°F | 87.9°F |
| Ciudad Lazaro Cardenas | 87.7°F | 86.8°F | 88.0°F |
| Manzanillo | 87.7°F | 85.8°F | 86.8°F |
| Playa Azul | 87.6°F | 85.8°F | 86.8°F |
| Costa Careyes | 87.6°F | 84.8°F | 85.8°F |
| Perula | 87.4°F | 84.0°F | 85.4°F |
| Cozumel | 86.9°F | 85.2°F | 86.3°F |
| Puerto Aventuras | 86.9°F | 85.3°F | 86.0°F |
| Riviera Maya | 86.9°F | 85.2°F | 85.9°F |
| Playa del Carmen | 86.9°F | 85.2°F | 86.1°F |
| Mahahual | 86.8°F | 85.3°F | 86.3°F |
| Puerto Morelos | 86.7°F | 85.0°F | 85.7°F |
| Tulum | 86.6°F | 85.0°F | 85.7°F |
| Isla Mujeres | 86.3°F | 84.6°F | 85.3°F |
| Brisas de Zicatela | 86.1°F | 88.3°F | 87.8°F |
| Purerto Escondido | 85.9°F | 88.2°F | 87.9°F |
| Cancun | 85.8°F | 84.2°F | 84.8°F |
| Mazunte | 85.7°F | 87.5°F | 87.2°F |
| Playa Zipolite | 85.6°F | 87.2°F | 87.1°F |
| San Agustinillo | 85.6°F | 87.2°F | 87.1°F |
| Puerto Angel | 85.4°F | 86.2°F | 86.6°F |
| La Penita de Jaltemba | 85.4°F | 81.6°F | 84.6°F |
| Rincon de Guayabitos | 85.4°F | 81.6°F | 84.6°F |
| San Pancho | 85.3°F | 81.8°F | 84.9°F |
| Salchi | 85.2°F | 84.1°F | 85.7°F |
| La Crucecita | 85.0°F | 83.4°F | 85.2°F |
| Sayulita | 85.0°F | 81.5°F | 84.8°F |
| Tangolunda | 84.9°F | 83.3°F | 85.1°F |
| San Blas | 84.9°F | 80.7°F | 84.2°F |
| Chetumal | 84.6°F | 81.5°F | 83.3°F |
| Punta Villela | 84.4°F | 80.8°F | 84.4°F |
| Punta Mita | 84.4°F | 80.8°F | 84.4°F |
| Nuevo Vallarta | 84.1°F | 80.1°F | 83.4°F |
| Puerto Vallarta | 84.0°F | 79.9°F | 83.4°F |
| Costa de Oro | 83.9°F | 82.6°F | 79.7°F |
| Ciudad del Carmen | 83.8°F | 81.7°F | 82.0°F |
| Coatzacoalcos | 83.4°F | 82.3°F | 80.4°F |
| Veracruz | 83.2°F | 82.0°F | 79.6°F |
| Boca del Rio | 83.2°F | 82.0°F | 79.6°F |
| Campeche | 83.0°F | 80.5°F | 80.9°F |
| Playa Chachalacas | 82.7°F | 82.0°F | 79.7°F |
| Los Medanos | 82.7°F | 82.0°F | 79.7°F |
| San Jose del Cabo | 82.0°F | 76.8°F | 81.7°F |
| Merida | 81.6°F | 79.3°F | 80.1°F |
| Cabo San Lucas | 81.5°F | 77.1°F | 82.4°F |
| Casitas | 81.4°F | 81.3°F | 79.0°F |
| Monte Gordo | 81.4°F | 81.3°F | 79.0°F |
| Playa Oriente | 81.2°F | 81.3°F | 78.8°F |
| La Vigueta | 81.2°F | 81.3°F | 78.8°F |
| Tecolutla | 80.9°F | 81.2°F | 78.5°F |
| Mazatlan | 80.2°F | 75.3°F | 81.9°F |
| Manzaltan | 80.2°F | 75.3°F | 81.9°F |
| Ciudad Madero | 80.0°F | 79.2°F | 74.9°F |
| La Paz | 79.9°F | 76.2°F | 77.9°F |
| Tampico | 79.7°F | 78.9°F | 74.8°F |
| La Pesca | 79.4°F | 77.8°F | 72.7°F |
| Ensenada | 64.8°F | 57.9°F | 64.1°F |
| Tijuana | 64.6°F | 56.8°F | 63.8°F |
Please see following sea water temperature averages charts for the warmest Mexico resorts in December.
You can also get the same information for the every other month of the year when the average sea water temperature is greater then 70°F.
Sea Water
Temperature
Temperature
| Puerto Arista |
Sea Water
Temperature
Temperature
| Luces en el Mar |
Sea Water
Temperature
Temperature
| Barra de Potosi |
Mexico Resorts:
NAME
F°
| Acapulco | ![]() |
+78 |
| Cabo San Lucas | ![]() |
+72 |
| Cancun | ![]() |
+80 |
| Cozumel | ![]() |
+80 |
| La Paz | ![]() |
+66 |
| Playa del Carmen | ![]() |
+78 |
| Playa Zipolite | ![]() |
+76 |
| Puerto Angel | ![]() |
+76 |
| Puerto Vallarta | ![]() |
+76 |
| Punta Mita | ![]() |
+78 |
| Riviera Maya | ![]() |
+78 |
| San Blas | ![]() |
+72 |
| San Patricio | ![]() |
+78 |
| Tijuana | ![]() |
+56 |
| Tulum | ![]() |
+76 |



























