Average sea water temperature in August:
+81.8°F
| Minimum sea water temperature in August: | 85.1°F |
| Maximum sea water temperature in August: | 78.4°F |
Daily sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 81.8°F. The highest and lowest sea temperatures during the month were 83.3°F and 80.6°F.
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Monthly sea water temperature in Unawatuna, °F
Which Sri Lanka resorts have warmest sea in August?
| Place name | August 2026 | August 2025 |
|---|---|---|
| Batticaloa | 84.9°F | 84.5°F |
| Pasikuda | 84.7°F | 84.4°F |
| Jafna | 84.4°F | 84.4°F |
| Trincomalee | 83.5°F | 83.9°F |
| Kalutara | 83.4°F | 82.7°F |
| Bentota | 83.3°F | 83.1°F |
| Beruwela | 83.3°F | 82.9°F |
| Wadduwa | 83.2°F | 82.4°F |
| Induruwa | 83.2°F | 83.1°F |
| Ahungalla | 83.1°F | 83.0°F |
| Habarana | 83.1°F | 83.4°F |
| Panadura | 83.0°F | 82.2°F |
| Balapitiya | 82.9°F | 82.8°F |
| Dehiwala Mount Lavinia | 82.8°F | 82.1°F |
| Negombo | 82.7°F | 82.4°F |
| Colombo | 82.7°F | 82.2°F |
| Hikkaduwa | 82.4°F | 81.7°F |
| Marawila | 82.3°F | 82.4°F |
| Unawatuna | 81.8°F | 81.2°F |
| Halle | 81.8°F | 81.2°F |
Best time for vacation in Unawatuna
Unawatuna on a weather map
Places in Sri Lanka:
Name
°F
24 Hours Forecast
Unawatuna
Local time: 03:39
August 27, thursday
0600
81°F
E
11 mph
11 mph
0900
82°F
E
13 mph
13 mph
1200
82°F
E
15 mph
15 mph
1500
81°F
E
15 mph
15 mph
1800
81°F
E
14 mph
14 mph
2100
81°F
E
13 mph
13 mph
August 28, friday
0000
81°F
E
14 mph
14 mph
0300
79°F
E
14 mph
14 mph
