Average sea water temperature in January:
+82.3°F
| Minimum sea water temperature in January: | 84.0°F |
| Maximum sea water temperature in January: | 79.7°F |
Daily sea water temperature in January, °F
Show year:
2026
2025
2024
The average sea water temperature in January of 2026 was 81.8°F. The highest and lowest sea temperatures during the month were 82.2°F and 81.3°F.
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Monthly sea water temperature in Unawatuna, °F
Which Sri Lanka resorts have warmest sea in January?
| Place name | January 2026 | January 2025 |
|---|---|---|
| Wadduwa | 81.9°F | 82.1°F |
| Panadura | 81.9°F | 82.1°F |
| Hikkaduwa | 81.8°F | 81.6°F |
| Weligama | 81.8°F | 82.2°F |
| Unawatuna | 81.8°F | 82.1°F |
| Marissa | 81.8°F | 82.2°F |
| Halle | 81.8°F | 82.1°F |
| Koggalla | 81.8°F | 82.2°F |
| Dehiwala Mount Lavinia | 81.8°F | 82.1°F |
| Kalutara | 81.8°F | 81.6°F |
| Tangalle | 81.7°F | 82.0°F |
| Colombo | 81.7°F | 82.1°F |
| Dikwella | 81.7°F | 82.2°F |
| Negombo | 81.6°F | 82.1°F |
| Marawila | 81.6°F | 82.0°F |
| Hambantota | 81.4°F | 81.5°F |
| Beruwela | 81.4°F | 80.9°F |
| Bentota | 81.1°F | 80.2°F |
| Balapitiya | 81.0°F | 80.1°F |
| Induruwa | 80.9°F | 79.9°F |
Best time for vacation in Unawatuna
Unawatuna on a weather map
Places in Sri Lanka:
Name
°F
24 Hours Forecast
Unawatuna
Local time: 19:53
January 15, thursday
2100
77°F
SW
1 mph
1 mph
January 16, friday
0000
75°F
SW
1 mph
1 mph
0300
75°F
S
3 mph
3 mph
0600
75°F
S
4 mph
4 mph
0900
81°F
S
1 mph
1 mph
1200
81°F
NE
6 mph
6 mph
1500
81°F
NE
6 mph
6 mph
1800
77°F
N
4 mph
4 mph
