In January warmest sea in Costa Rica is usually observed in the following locations: Quepos, Cartago, Heredia.
Table below shows the average sea water temperature for marine resorts of Costa Rica in January for the last three years.
| Place name | January 2026 | January 2025 | January 2024 |
|---|---|---|---|
| Quepos | 84.2°F | 84.0°F | 86.3°F |
| Cartago | 84.1°F | 84.0°F | 86.2°F |
| Heredia | 84.1°F | 83.8°F | 86.0°F |
| San Jose | 84.1°F | 83.9°F | 86.2°F |
| Jaco | 84.1°F | 83.7°F | 85.9°F |
| Alajuela | 83.8°F | 83.5°F | 85.6°F |
| Santa Teresa | 83.4°F | 83.2°F | 85.4°F |
| Samara | 83.3°F | 83.1°F | 85.2°F |
| El Roble | 83.0°F | 82.6°F | 84.9°F |
| Tamarindo | 82.7°F | 82.0°F | 84.5°F |
| Playas del Coco | 82.1°F | 81.0°F | 83.1°F |
| Playa Flamingo | 81.9°F | 81.0°F | 83.1°F |
| Limon | 81.7°F | 81.5°F | 82.7°F |
| Puerto Limon | 81.7°F | 81.5°F | 82.7°F |
| Puerto Viejo de Talamanca | 81.6°F | 81.6°F | 82.8°F |
| Cahuita | 81.6°F | 81.5°F | 82.8°F |
| Tortuguero | 81.5°F | 81.3°F | 82.5°F |
Charts below show average sea water temperature for Costa Rica resorts with the warmest sea in January.
You can also check other months of the year to see sea temperature of Costa Rica resorts at that time.
Places in Costa Rica:
Name
°F
