In December warmest sea in Sri Lanka is usually observed in the following locations: Hikkaduwa, Wadduwa, Panadura.
Table below shows the average sea water temperature for marine resorts of Sri Lanka in December for the last three years.
| Place name | December 2025 | December 2024 | December 2023 |
|---|---|---|---|
| Hikkaduwa | 82.8°F | 83.6°F | 84.5°F |
| Wadduwa | 82.7°F | 84.0°F | 84.1°F |
| Panadura | 82.7°F | 84.0°F | 84.1°F |
| Unawatuna | 82.7°F | 83.7°F | 84.3°F |
| Halle | 82.7°F | 83.7°F | 84.3°F |
| Dehiwala Mount Lavinia | 82.7°F | 84.1°F | 84.2°F |
| Colombo | 82.6°F | 84.1°F | 84.2°F |
| Koggalla | 82.6°F | 83.7°F | 84.3°F |
| Weligama | 82.6°F | 83.6°F | 84.1°F |
| Hambantota | 82.5°F | 83.5°F | 84.1°F |
| Marawila | 82.5°F | 83.9°F | 84.1°F |
| Marissa | 82.5°F | 83.7°F | 84.3°F |
| Dikwella | 82.5°F | 83.5°F | 84.2°F |
| Tangalle | 82.5°F | 83.5°F | 84.1°F |
| Negombo | 82.4°F | 84.0°F | 84.2°F |
| Kalutara | 82.4°F | 83.1°F | 84.0°F |
| Pasikuda | 82.0°F | 82.5°F | 83.3°F |
| Beruwela | 81.9°F | 82.4°F | 84.1°F |
| Batticaloa | 81.9°F | 82.2°F | 83.3°F |
| Balapitiya | 81.5°F | 82.0°F | 84.4°F |
| Trincomalee | 81.5°F | 82.5°F | 82.9°F |
| Habarana | 81.4°F | 82.1°F | 82.3°F |
| Bentota | 81.3°F | 81.7°F | 84.2°F |
| Induruwa | 81.1°F | 81.5°F | 84.3°F |
| Ahungalla | 81.0°F | 81.5°F | 84.4°F |
| Jafna | 80.6°F | 81.9°F | 82.3°F |
Charts below show average sea water temperature for Sri Lanka resorts with the warmest sea in December.
You can also check other months of the year to see sea temperature of Sri Lanka resorts at that time.
Places in Sri Lanka:
Name
°F
