Average sea water temperature in May:
+84.6°F
| Minimum sea water temperature in May: | 88.2°F |
| Maximum sea water temperature in May: | 81.1°F |
Daily sea water temperature in May, °F
Show year:
2025
2024
2023
The average sea water temperature in May of 2025 was 84.7°F. The highest and lowest sea temperatures during the month were 86.0°F and 83.8°F.
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Monthly sea water temperature in Unawatuna, °F
Which Sri Lanka resorts have warmest sea in May?
| Place name | May 2025 | May 2024 |
|---|---|---|
| Jafna | 87.0°F | 88.3°F |
| Pasikuda | 86.7°F | 86.7°F |
| Batticaloa | 86.7°F | 86.7°F |
| Trincomalee | 86.2°F | 86.7°F |
| Habarana | 86.2°F | 86.7°F |
| Marawila | 86.0°F | 86.6°F |
| Negombo | 86.0°F | 86.7°F |
| Panadura | 85.7°F | 86.3°F |
| Dehiwala Mount Lavinia | 85.7°F | 86.5°F |
| Wadduwa | 85.7°F | 86.3°F |
| Colombo | 85.7°F | 86.5°F |
| Kalutara | 85.3°F | 85.8°F |
| Hikkaduwa | 85.0°F | 85.7°F |
| Beruwela | 84.9°F | 85.4°F |
| Unawatuna | 84.7°F | 85.7°F |
| Halle | 84.7°F | 85.7°F |
| Koggalla | 84.5°F | 85.5°F |
| Weligama | 84.5°F | 85.4°F |
| Marissa | 84.4°F | 85.4°F |
| Bentota | 84.3°F | 85.0°F |
Best time for vacation in Unawatuna
Unawatuna on a weather map
Places in Sri Lanka:
Name
°F
24 Hours Forecast
Unawatuna
Local time: 11:29
December 05, friday
1200
86°F
NW
7 mph
7 mph
1500
81°F
NW
4 mph
4 mph
1800
79°F
S
3 mph
3 mph
2100
77°F
S
2 mph
2 mph
December 06, saturday
0000
77°F
SE
3 mph
3 mph
0300
77°F
SE
2 mph
2 mph
0600
77°F
SW
2 mph
2 mph
0900
82°F
W
2 mph
2 mph
