The Mexico resorts with the warmest sea water temperature in December are Puerto Arista, Luces en el Mar and Acapulco.
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 | 89.3°F | 87.0°F | 88.6°F |
| Luces en el Mar | 88.0°F | 87.6°F | 89.2°F |
| Acapulco | 87.8°F | 87.4°F | 89.1°F |
| Barra de Potosi | 87.6°F | 87.0°F | 88.8°F |
| Troncones | 87.4°F | 86.9°F | 88.4°F |
| Zihuatanejo | 87.3°F | 86.7°F | 88.6°F |
| Ciudad Lazaro Cardenas | 87.1°F | 86.8°F | 88.0°F |
| San Patricio | 86.6°F | 85.9°F | 86.4°F |
| Caleta de Campos | 86.5°F | 86.1°F | 87.9°F |
| Cozumel | 86.5°F | 85.2°F | 86.3°F |
| Playa del Carmen | 86.4°F | 85.2°F | 86.1°F |
| Puerto Aventuras | 86.4°F | 85.3°F | 86.0°F |
| Manzanillo | 86.4°F | 85.8°F | 86.8°F |
| Riviera Maya | 86.4°F | 85.2°F | 85.9°F |
| Playa Azul | 86.4°F | 85.8°F | 86.8°F |
| Mahahual | 86.3°F | 85.3°F | 86.3°F |
| La Manzanilla | 86.2°F | 85.4°F | 86.2°F |
| Tulum | 86.1°F | 85.0°F | 85.7°F |
| Costa Careyes | 86.1°F | 84.8°F | 85.8°F |
| Puerto Morelos | 86.1°F | 85.0°F | 85.7°F |
| Brisas de Zicatela | 86.0°F | 88.3°F | 87.8°F |
| Purerto Escondido | 86.0°F | 88.2°F | 87.9°F |
| Isla Mujeres | 85.7°F | 84.6°F | 85.3°F |
| Perula | 85.6°F | 84.0°F | 85.4°F |
| Mazunte | 85.6°F | 87.5°F | 87.2°F |
| Playa Zipolite | 85.5°F | 87.2°F | 87.1°F |
| San Agustinillo | 85.5°F | 87.2°F | 87.1°F |
| Puerto Angel | 85.3°F | 86.2°F | 86.6°F |
| Cancun | 85.2°F | 84.2°F | 84.8°F |
| Salchi | 85.2°F | 84.1°F | 85.7°F |
| La Crucecita | 84.7°F | 83.4°F | 85.2°F |
| Tangolunda | 84.7°F | 83.3°F | 85.1°F |
| San Pancho | 84.1°F | 81.8°F | 84.9°F |
| La Penita de Jaltemba | 84.0°F | 81.6°F | 84.6°F |
| Rincon de Guayabitos | 84.0°F | 81.6°F | 84.6°F |
| Chetumal | 83.9°F | 81.5°F | 83.3°F |
| San Blas | 83.8°F | 80.7°F | 84.2°F |
| Sayulita | 83.7°F | 81.5°F | 84.8°F |
| Punta Mita | 83.4°F | 80.8°F | 84.4°F |
| Punta Villela | 83.4°F | 80.8°F | 84.4°F |
| Ciudad del Carmen | 83.3°F | 81.7°F | 82.0°F |
| Nuevo Vallarta | 83.0°F | 80.1°F | 83.4°F |
| Puerto Vallarta | 83.0°F | 79.9°F | 83.4°F |
| Costa de Oro | 83.0°F | 82.6°F | 79.7°F |
| Coatzacoalcos | 82.5°F | 82.3°F | 80.4°F |
| Campeche | 82.4°F | 80.5°F | 80.9°F |
| Boca del Rio | 82.3°F | 82.0°F | 79.6°F |
| Veracruz | 82.3°F | 82.0°F | 79.6°F |
| San Jose del Cabo | 82.2°F | 76.8°F | 81.7°F |
| Playa Chachalacas | 81.9°F | 82.0°F | 79.7°F |
| Los Medanos | 81.9°F | 82.0°F | 79.7°F |
| Cabo San Lucas | 81.9°F | 77.1°F | 82.4°F |
| Casitas | 81.2°F | 81.3°F | 79.0°F |
| Monte Gordo | 81.2°F | 81.3°F | 79.0°F |
| Merida | 81.1°F | 79.3°F | 80.1°F |
| Playa Oriente | 81.1°F | 81.3°F | 78.8°F |
| La Vigueta | 81.1°F | 81.3°F | 78.8°F |
| Tecolutla | 80.7°F | 81.2°F | 78.5°F |
| Ciudad Madero | 80.1°F | 79.2°F | 74.9°F |
| Tampico | 79.8°F | 78.9°F | 74.8°F |
| Mazatlan | 79.5°F | 75.3°F | 81.9°F |
| Manzaltan | 79.5°F | 75.3°F | 81.9°F |
| La Paz | 78.8°F | 76.2°F | 77.9°F |
| La Pesca | 78.1°F | 77.8°F | 72.7°F |
| Tijuana | 64.1°F | 56.8°F | 63.8°F |
| Ensenada | 64.1°F | 57.9°F | 64.1°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
| Acapulco |
Mexico Resorts:
NAME
F°
| Acapulco |  |
+86 |
| Cabo San Lucas |  |
+76 |
| Cancun | |
+92 |
| Cozumel | |
+90 |
| La Paz |  |
+70 |
| Mazatlan | |
+78 |
| Nuevo Vallarta |  |
+78 |
| Playa del Carmen | |
+90 |
| Playa Zipolite | |
+90 |
| Puerto Aventuras | |
+90 |
| Puerto Vallarta | |
+76 |
| Riviera Maya | |
+90 |
| San Jose del Cabo | |
+78 |
| Tijuana | |
+52 |
| Tulum | |
+84 |
