In August warmest sea in Caribbean Sea is usually observed in the following locations: Key West, Islamorada, Cayo Largo.
Table below shows the average sea water temperature for marine resorts of Caribbean Sea in August for the last three years.
| Place name | August 2026 | August 2025 | August 2024 |
|---|---|---|---|
| Key West | 88.8°F | 88.8°F | 87.8°F |
| Islamorada | 88.4°F | 88.8°F | 87.3°F |
| Cayo Largo | 88.4°F | 88.5°F | 88.3°F |
| Key Largo | 88.4°F | 88.7°F | 87.3°F |
| Niquero | 88.2°F | 87.6°F | 87.6°F |
| Pinar del Rio | 88.1°F | 88.5°F | 88.3°F |
| Manzanillo | 87.6°F | 87.2°F | 87.5°F |
| Cienfuegos | 87.4°F | 87.2°F | 87.1°F |
| New Providence | 87.4°F | 87.0°F | 86.4°F |
| Cayman Brac | 87.3°F | 87.2°F | 86.9°F |
| Nassau | 87.2°F | 86.8°F | 86.4°F |
| Andros | 87.2°F | 87.3°F | 86.5°F |
| Trinidad | 87.2°F | 87.2°F | 87.1°F |
| Little Cayman | 87.1°F | 87.2°F | 87.0°F |
| Chetumal | 87.1°F | 87.0°F | 87.0°F |
| Eleuthera | 87.0°F | 86.6°F | 86.2°F |
| Varadero | 86.9°F | 87.4°F | 87.3°F |
| Carrefour | 86.8°F | 86.5°F | 86.7°F |
| Cayo Guillermo | 86.8°F | 86.9°F | 87.0°F |
| Cayo Coco | 86.8°F | 87.0°F | 87.1°F |
| Port au Prince | 86.7°F | 86.4°F | 86.6°F |
| Grand Cayman | 86.7°F | 86.9°F | 86.9°F |
| George Town | 86.7°F | 86.9°F | 86.9°F |
| Santa Maria | 86.7°F | 86.8°F | 86.7°F |
| Cayo Santa Maria | 86.7°F | 86.9°F | 86.7°F |
| Santiago de Cuba | 86.6°F | 86.3°F | 86.7°F |
| Westmoreland | 86.6°F | 86.2°F | 86.5°F |
| Campeche | 86.5°F | 86.6°F | 87.2°F |
| Belize | 86.3°F | 86.9°F | 86.8°F |
| Puerto Barrios | 86.2°F | 86.7°F | 86.1°F |
| Havana | 86.2°F | 85.8°F | 86.5°F |
| San Pedro | 86.2°F | 86.9°F | 86.8°F |
| Ambergis Caye | 86.2°F | 86.7°F | 86.7°F |
| Negril | 86.0°F | 86.2°F | 86.4°F |
| San Pedro Sula | 85.9°F | 87.0°F | 86.2°F |
| Puerto Cortes | 85.8°F | 86.9°F | 86.7°F |
| Puerto Morelos | 85.8°F | 85.9°F | 86.2°F |
| Placencia | 85.7°F | 86.9°F | 86.6°F |
| Tulum | 85.7°F | 85.8°F | 86.1°F |
| Providenciales | 85.6°F | 85.3°F | 85.8°F |
| Livingston | 85.6°F | 87.1°F | 86.8°F |
| Tela | 85.6°F | 86.8°F | 86.7°F |
| Matanzas | 85.6°F | 85.9°F | 86.0°F |
| Riviera Maya | 85.6°F | 85.7°F | 86.1°F |
| Puerto Aventuras | 85.5°F | 85.7°F | 86.1°F |
| Playa del Carmen | 85.5°F | 85.7°F | 86.1°F |
| Montego Bay | 85.5°F | 85.7°F | 86.0°F |
| Cap Haitien | 85.4°F | 85.0°F | 85.8°F |
| Punta Gorda | 85.4°F | 86.5°F | 86.3°F |
| Cozumel | 85.4°F | 85.6°F | 86.1°F |
| Kingston | 85.4°F | 85.6°F | 86.4°F |
| Mahahual | 85.4°F | 85.8°F | 86.1°F |
| Mayaguez | 85.3°F | 85.2°F | 85.9°F |
| Runaway Bay | 85.3°F | 85.7°F | 86.0°F |
| Cancun | 85.2°F | 85.4°F | 85.6°F |
| Port Antonio | 85.2°F | 85.7°F | 86.0°F |
| Ponce | 85.1°F | 85.4°F | 86.1°F |
| Playa Santa Lucia | 85.0°F | 85.4°F | 85.7°F |
| Samana | 85.0°F | 85.1°F | 85.5°F |
| Bocha Chica | 84.8°F | 84.8°F | 85.5°F |
| Santo Domingo | 84.8°F | 84.8°F | 85.7°F |
| Juan Dolio | 84.8°F | 84.9°F | 85.7°F |
| San Pedro De Macoris | 84.8°F | 84.9°F | 85.7°F |
| Ocho Rios | 84.8°F | 85.5°F | 85.8°F |
| Aguadilla | 84.8°F | 85.0°F | 85.7°F |
| Grand Turk | 84.7°F | 84.6°F | 85.1°F |
| Cockburn | 84.7°F | 84.6°F | 85.1°F |
| La Romana | 84.7°F | 84.7°F | 85.5°F |
| La Ceiba | 84.7°F | 86.2°F | 86.3°F |
| Isla Mujeres | 84.7°F | 84.9°F | 85.4°F |
| Guanaja | 84.7°F | 85.0°F | 85.8°F |
| Salt Cay | 84.7°F | 84.6°F | 85.0°F |
| Pointe-a-Pitre | 84.6°F | 85.2°F | 85.7°F |
| Playa Esmeralda | 84.6°F | 84.6°F | 85.1°F |
| Roatan | 84.6°F | 85.3°F | 85.8°F |
| Holguin | 84.6°F | 84.8°F | 85.1°F |
| San Juan | 84.5°F | 84.8°F | 85.3°F |
| Playa Blanca | 84.5°F | 84.7°F | 85.1°F |
| Baracoa | 84.5°F | 84.5°F | 85.0°F |
| West End | 84.5°F | 85.3°F | 85.8°F |
| Sandy Bay | 84.5°F | 85.3°F | 85.8°F |
| Coxen Hole | 84.5°F | 85.3°F | 85.8°F |
| West Bay | 84.5°F | 85.3°F | 85.8°F |
| Merida | 84.5°F | 81.1°F | 83.0°F |
| Philipsburg | 84.4°F | 84.6°F | 85.5°F |
| Isabella | 84.4°F | 84.7°F | 85.4°F |
| Los Cayitos | 84.3°F | 85.5°F | 86.1°F |
| Utila | 84.3°F | 85.4°F | 86.0°F |
| Barbuda | 84.3°F | 84.6°F | 85.6°F |
| St John's | 84.2°F | 84.7°F | 85.6°F |
| Basse-Terre | 84.2°F | 84.8°F | 85.6°F |
| Antigua | 84.2°F | 84.7°F | 85.6°F |
| Playa Bavaro | 84.1°F | 84.3°F | 84.5°F |
| Punta Cana | 84.1°F | 84.6°F | 84.8°F |
| Arena Gorda | 84.1°F | 84.3°F | 84.5°F |
| Cap Cana | 84.1°F | 84.6°F | 84.8°F |
| Arecibo | 84.1°F | 84.6°F | 85.2°F |
| Sosua | 84.0°F | 83.9°F | 84.0°F |
| Trujillo | 84.0°F | 85.1°F | 85.6°F |
| Puerto Plata | 83.8°F | 83.8°F | 84.0°F |
| Maimon Bay | 83.7°F | 83.9°F | 83.9°F |
Charts below show average sea water temperature for Caribbean Sea resorts with the warmest sea in August.
You can also check other months of the year to see sea temperature of Caribbean Sea resorts at that time.
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