Average sea water temperature in December:
+83.3°F
| Minimum sea water temperature in December: | 85.3°F |
| Maximum sea water temperature in December: | 81.3°F |
Daily sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 82.4°F. The highest and lowest sea temperatures during the month were 82.9°F and 81.7°F.
Monthly sea water temperature in Negombo, °F
Which Sri Lanka resorts have warmest sea in December?
| Place name | December 2025 | December 2024 |
|---|---|---|
| Hikkaduwa | 82.8°F | 83.6°F |
| Wadduwa | 82.7°F | 84.0°F |
| Panadura | 82.7°F | 84.0°F |
| Dehiwala Mount Lavinia | 82.6°F | 84.1°F |
| Unawatuna | 82.6°F | 83.7°F |
| Halle | 82.6°F | 83.7°F |
| Colombo | 82.6°F | 84.1°F |
| Koggalla | 82.6°F | 83.7°F |
| Weligama | 82.5°F | 83.6°F |
| Hambantota | 82.5°F | 83.5°F |
| Marawila | 82.5°F | 83.9°F |
| Marissa | 82.5°F | 83.7°F |
| Dikwella | 82.4°F | 83.5°F |
| Tangalle | 82.4°F | 83.5°F |
| Negombo | 82.4°F | 84.0°F |
| Kalutara | 82.4°F | 83.1°F |
| Pasikuda | 81.9°F | 82.5°F |
| Beruwela | 81.9°F | 82.4°F |
| Batticaloa | 81.8°F | 82.2°F |
| Balapitiya | 81.5°F | 82.0°F |
Best time for vacation in Negombo
Negombo on a weather map
Places in Sri Lanka:
Name
°F
24 Hours Forecast
Negombo
Local time: 14:35
December 23, tuesday
1500
84°F
S
18 mph
18 mph
1800
82°F
S
16 mph
16 mph
2100
79°F
SW
18 mph
18 mph
December 24, wednesday
0000
77°F
SW
17 mph
17 mph
0300
75°F
SW
17 mph
17 mph
0600
75°F
S
17 mph
17 mph
0900
81°F
SW
17 mph
17 mph
1200
86°F
S
16 mph
16 mph
