In October warmest sea in Costa Rica is usually observed in the following locations: Limon, Puerto Limon, Puerto Viejo de Talamanca.
Table below shows the average sea water temperature for marine resorts of Costa Rica in October for the last three years.
| Place name | October 2025 | October 2024 | October 2023 |
|---|---|---|---|
| Limon | 85.0°F | 85.6°F | 86.3°F |
| Puerto Limon | 85.0°F | 85.6°F | 86.3°F |
| Puerto Viejo de Talamanca | 85.0°F | 85.4°F | 86.2°F |
| Tortuguero | 84.9°F | 84.9°F | 85.8°F |
| Cahuita | 84.9°F | 85.4°F | 86.2°F |
| Playas del Coco | 83.5°F | 83.7°F | 85.7°F |
| Playa Flamingo | 83.1°F | 83.6°F | 85.5°F |
| Tamarindo | 83.0°F | 83.6°F | 85.7°F |
| Samara | 82.9°F | 83.5°F | 85.2°F |
| Heredia | 82.9°F | 83.7°F | 85.1°F |
| Santa Teresa | 82.9°F | 83.7°F | 85.5°F |
| Jaco | 82.9°F | 83.6°F | 85.0°F |
| Alajuela | 82.8°F | 83.6°F | 85.0°F |
| San Jose | 82.8°F | 83.7°F | 85.3°F |
| Quepos | 82.7°F | 83.6°F | 85.1°F |
| El Roble | 82.7°F | 83.6°F | 85.0°F |
| Cartago | 82.6°F | 83.7°F | 85.3°F |
Charts below show average sea water temperature for Costa Rica resorts with the warmest sea in October.
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
