Current Sea Water Temperature:
+88.0°F
| Maximum Sea Water Temperature in September: | 89.4°F |
| Minimum Sea Water Temperature in September: | 83.2°F |
| Average water temperature in September: | 86.3°F |
| detailed information | |
Sea Water Temperature for the Last 10 Days:
| September 08 | 88.0°F | September 03 | 88.2°F |
| September 07 | 88.4°F | September 02 | 87.6°F |
| September 06 | 88.4°F | September 01 | 86.8°F |
| September 05 | 87.6°F | August 31 | 85.8°F |
| September 04 | 87.8°F | August 30 | 86.4°F |
When is the Warmest Sea for Negombo?
According to our data for the last three years for Negombo 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 Negombo was 91.4°F. The maximum and minimum values were 90.4°F and 92.4°F respectively.
Sea Water Temperature in May
The average sea surface temperature in May 2026 for Negombo was 90.1°F. The maximum and minimum values were 88.0°F and 92.0°F respectively.
Sea Water Temperature in March
The average sea surface temperature in March 2026 for Negombo was 89.2°F. The maximum and minimum values were 86.6°F and 91.6°F respectively.
Sri Lanka Resorts:
NAME
F°
| Ahungalla |  |
+82 |
| Bentota | |
+82 |
| Colombo |  |
+86 |
| Dikwella | |
+80 |
| Halle |  |
+84 |
| Hambantota | |
+84 |
| Hikkaduwa | |
+84 |
| Kalutara | |
+82 |
| Marissa | |
+80 |
| Negombo | |
+86 |
| Pasikuda | |
+86 |
| Tangalle | |
+80 |
| Trincomalee | |
+84 |
| Unawatuna | |
+84 |
| Weligama | |
+84 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Negombo
Local time: 01:51
09 sep, wednesday
| 0300 |  |
86°F | NE 16 mph |
| 0600 |  |
86°F | NE 15 mph |
| 0900 | |
86°F | NE 15 mph |
| 1200 | |
86°F | NE 14 mph |
| 1500 | |
84°F | NE 14 mph |
| 1800 |  |
86°F | NE 13 mph |
| 2100 | |
86°F | NE 14 mph |
10 sep, thursday
| 0000 | |
86°F | NE 17 mph |