The Cayman Islands resorts with the warmest sea water temperature in December are Little Cayman, Cayman Brac and George Town.
Below you can see a list of all popular Cayman Islands resorts and information about sea water temperature in December for the last two years.
| Resort Name | December 2025 | December 2024 | December 2023 |
|---|---|---|---|
| Little Cayman | 87.4°F | 86.0°F | 87.0°F |
| Cayman Brac | 87.4°F | 85.8°F | 86.9°F |
| George Town | 87.4°F | 86.3°F | 87.5°F |
| Grand Cayman | 87.3°F | 86.3°F | 87.5°F |
Please see following sea water temperature averages charts for the warmest Cayman Islands resorts in December.
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.
Sea Water
Temperature
Temperature
| Little Cayman |
Sea Water
Temperature
Temperature
| Cayman Brac |
Sea Water
Temperature
Temperature
| George Town |
