Current Sea Water Temperature:
+85.6°F
| Maximum Sea Water Temperature in August: | 89.0°F |
| Minimum Sea Water Temperature in August: | 81.6°F |
| Average water temperature in August: | 85.3°F |
| detailed information | |
Sea Water Temperature for the Last 10 Days:
| August 21 | 85.6°F | August 16 | 85.2°F |
| August 20 | 86.0°F | August 15 | 85.2°F |
| August 19 | 85.6°F | August 14 | 85.2°F |
| August 18 | 85.6°F | August 13 | 84.4°F |
| August 17 | 85.2°F | August 12 | 84.8°F |
When is the Warmest Sea for Unawatuna?
According to our data for the last three years for Unawatuna the highest average sea water temperature was in April, May and March.
Average Water Temperature by Month, °F
Sea Water Temperature in April
The average sea surface temperature in April 2026 for Unawatuna was 90.7°F. The maximum and minimum values were 89.0°F and 92.0°F respectively.
Sea Water Temperature in May
The average sea surface temperature in May 2026 for Unawatuna was 88.9°F. The maximum and minimum values were 86.8°F and 91.8°F respectively.
Sea Water Temperature in March
The average sea surface temperature in March 2026 for Unawatuna was 87.7°F. The maximum and minimum values were 86.0°F and 89.6°F respectively.
Sri Lanka Resorts:
NAME
F°
| Ahungalla |  |
+82 |
| Bentota | |
+82 |
| Colombo |  |
+84 |
| Dikwella | |
+80 |
| Halle | |
+82 |
| Hambantota | |
+84 |
| Hikkaduwa | |
+82 |
| Kalutara | |
+82 |
| Marissa | |
+80 |
| Negombo | |
+84 |
| Pasikuda | |
+84 |
| Tangalle | |
+80 |
| Trincomalee | |
+84 |
| Unawatuna | |
+82 |
| Weligama | |
+84 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Unawatuna
Local time: 03:26
22 aug, saturday
| 0600 |  |
84°F | E 14 mph |
| 0900 | |
86°F | E 13 mph |
| 1200 |  |
86°F | E 14 mph |
| 1500 | |
84°F | E 13 mph |
| 1800 | |
84°F | E 11 mph |
| 2100 | |
82°F | E 11 mph |
23 aug, sunday
| 0000 | |
82°F | E 12 mph |
| 0300 | |
82°F | E 12 mph |