In March warmest sea in Costa Rica is usually observed in the following locations: Quepos, Cartago, San Jose.
Table below shows the average sea water temperature for marine resorts of Costa Rica in March for the last three years.
| Place name | March 2026 | March 2025 | March 2024 |
|---|---|---|---|
| Quepos | 86.5°F | 86.4°F | 87.0°F |
| Cartago | 86.3°F | 86.3°F | 87.0°F |
| San Jose | 86.3°F | 86.2°F | 87.0°F |
| Heredia | 86.2°F | 86.0°F | 86.5°F |
| Jaco | 86.0°F | 85.8°F | 86.4°F |
| Alajuela | 85.6°F | 85.5°F | 86.1°F |
| Santa Teresa | 84.7°F | 84.9°F | 85.0°F |
| El Roble | 84.5°F | 84.6°F | 85.1°F |
| Samara | 84.1°F | 84.7°F | 84.5°F |
| Tamarindo | 83.1°F | 83.8°F | 83.5°F |
| Limon | 82.2°F | 83.5°F | 83.1°F |
| Puerto Limon | 82.2°F | 83.5°F | 83.1°F |
| Cahuita | 82.2°F | 83.5°F | 83.0°F |
| Puerto Viejo de Talamanca | 82.1°F | 83.5°F | 83.1°F |
| Tortuguero | 82.1°F | 83.5°F | 83.0°F |
| Playas del Coco | 81.5°F | 82.5°F | 83.1°F |
| Playa Flamingo | 81.4°F | 82.3°F | 82.6°F |
Charts below show average sea water temperature for Costa Rica resorts with the warmest sea in March.
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
