The Costa Rica resorts with the warmest sea water temperature in July are San Jose, Cartago and Heredia.
Below you can see a list of all popular Costa Rica resorts and information about sea water temperature in July for the last two years.
| Resort Name | July 2026 | July 2025 | July 2024 |
|---|---|---|---|
| San Jose | 90.7°F | 89.0°F | 87.7°F |
| Cartago | 90.7°F | 88.8°F | 87.6°F |
| Heredia | 90.7°F | 88.9°F | 87.7°F |
| Quepos | 90.6°F | 88.6°F | 87.5°F |
| Jaco | 90.5°F | 89.0°F | 87.8°F |
| Alajuela | 90.4°F | 88.9°F | 87.8°F |
| Santa Teresa | 90.4°F | 88.9°F | 88.1°F |
| Samara | 90.3°F | 88.9°F | 88.4°F |
| El Roble | 90.1°F | 88.5°F | 87.9°F |
| Tamarindo | 89.8°F | 88.5°F | 87.7°F |
| Playa Flamingo | 89.6°F | 88.1°F | 87.7°F |
| Playas del Coco | 89.5°F | 88.0°F | 87.8°F |
| Puerto Viejo de Talamanca | 87.5°F | 86.9°F | 88.2°F |
| Cahuita | 87.5°F | 86.9°F | 88.2°F |
| Limon | 87.5°F | 86.7°F | 88.3°F |
| Puerto Limon | 87.5°F | 86.7°F | 88.3°F |
| Tortuguero | 86.8°F | 86.2°F | 87.8°F |
Please see following sea water temperature averages charts for the warmest Costa Rica resorts in July.
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.
Costa Rica Resorts:
NAME
F°
| Alajuela |  |
+62 |
| Cahuita |  |
+80 |
| El Roble |  |
+80 |
| Heredia | |
+58 |
| Jaco | |
+82 |
| Limon |  |
+80 |
| Playa Flamingo | |
+80 |
| Playas del Coco | |
+80 |
| Puerto Limon | |
+80 |
| Puerto Viejo de Talamanca | |
+78 |
| Samara | |
+80 |
| San Jose | |
+58 |
| Santa Teresa | |
+82 |
| Tamarindo | |
+80 |
| Tortuguero | |
+78 |
