Current Sea Water Temperature:
+89.0°F
| Maximum Sea Water Temperature in October: | 89.6°F |
| Minimum Sea Water Temperature in October: | 83.6°F |
| Average water temperature in October: | 86.9°F |
| detailed information | |
Sea Water Temperature for the Last 10 Days:
| October 21 | 89.0°F | October 16 | 88.2°F |
| October 20 | 89.6°F | October 15 | 89.2°F |
| October 19 | 89.2°F | October 14 | 89.4°F |
| October 18 | 89.6°F | October 13 | 89.0°F |
| October 17 | 88.8°F | October 12 | 88.6°F |
When is the Warmest Sea for Marissa?
According to our data for the last three years for Marissa 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 Marissa was 90.3°F. The maximum and minimum values were 88.2°F and 91.8°F respectively.
Sea Water Temperature in May
The average sea surface temperature in May 2026 for Marissa was 88.4°F. The maximum and minimum values were 85.6°F and 91.4°F respectively.
Sea Water Temperature in March
The average sea surface temperature in March 2026 for Marissa was 87.6°F. The maximum and minimum values were 85.8°F and 89.4°F respectively.
Sri Lanka Resorts:
NAME
F°
| Ahungalla | ![]() |
+82 |
| Bentota | ![]() |
+82 |
| Colombo | ![]() |
+84 |
| Hambantota | ![]() |
+84 |
| Hikkaduwa | ![]() |
+84 |
| Kalutara | ![]() |
+82 |
| Koggalla | ![]() |
+84 |
| Marawila | ![]() |
+84 |
| Marissa | ![]() |
+82 |
| Negombo | ![]() |
+84 |
| Pasikuda | ![]() |
+86 |
| Tangalle | ![]() |
+82 |
| Trincomalee | ![]() |
+86 |
| Unawatuna | ![]() |
+84 |
| Weligama | ![]() |
+84 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Marissa
Local time: 08:17
22 oct, thursday
| 0900 | ![]() |
82°F | E 7 mph |
| 1200 | ![]() |
86°F | E 11 mph |
| 1500 | ![]() |
84°F | E 10 mph |
| 1800 | ![]() |
80°F | E 9 mph |
| 2100 | ![]() |
80°F | E 6 mph |
23 oct, friday
| 0000 | ![]() |
80°F | NE 12 mph |
| 0300 | ![]() |
80°F | E 13 mph |
| 0600 | ![]() |
80°F | E 8 mph |





























