In August warmest sea in Cayman Islands is usually observed in the following locations: Cayman Brac, Little Cayman, Grand Cayman.
Table below shows the average sea water temperature for marine resorts of Cayman Islands in August for the last three years.
| Place name | August 2026 | August 2025 | August 2024 |
|---|---|---|---|
| Cayman Brac | 87.2°F | 87.2°F | 86.9°F |
| Little Cayman | 87.1°F | 87.2°F | 87.0°F |
| Grand Cayman | 86.7°F | 86.9°F | 86.9°F |
| George Town | 86.7°F | 86.9°F | 86.9°F |
Charts below show average sea water temperature for Cayman Islands resorts with the warmest sea in August.
You can also check other months of the year to see sea temperature of Cayman Islands resorts at that time.
Places in Cayman Islands:
Name
°F
