Current Sea Water Temperature:
+90.4°F
| Maximum Sea Water Temperature in September: | 91.8°F |
| Minimum Sea Water Temperature in September: | 85.8°F |
| Average water temperature in September: | 88.2°F |
| detailed information | |
Sea Water Temperature for the Last 10 Days:
| September 28 | 90.4°F | September 23 | 89.6°F |
| September 27 | 89.6°F | September 22 | 90.2°F |
| September 26 | 90.2°F | September 21 | 90.4°F |
| September 25 | 90.6°F | September 20 | 90.4°F |
| September 24 | 90.6°F | September 19 | 90.2°F |
When is the Warmest Sea for Tamarindo?
According to our data for the last three years for Tamarindo the highest average sea water temperature was in May, June and August.
Average Water Temperature by Month, °F
Sea Water Temperature in May
The average sea surface temperature in May 2026 for Tamarindo was 90.1°F. The maximum and minimum values were 88.8°F and 91.0°F respectively.
Sea Water Temperature in June
The average sea surface temperature in June 2026 for Tamarindo was 89.8°F. The maximum and minimum values were 88.6°F and 91.0°F respectively.
Sea Water Temperature in August
The average sea surface temperature in August 2026 for Tamarindo was 90.1°F. The maximum and minimum values were 89.2°F and 91.2°F respectively.
Costa Rica Resorts:
NAME
F°
| Alajuela |  |
+68 |
| Cahuita |  |
+84 |
| El Roble |  |
+82 |
| Heredia | |
+66 |
| Jaco | |
+84 |
| Limon | |
+84 |
| Playas del Coco | |
+82 |
| Puerto Limon | |
+84 |
| Puerto Viejo de Talamanca | |
+84 |
| Quepos | |
+82 |
| Samara | |
+78 |
| San Jose | |
+66 |
| Santa Teresa | |
+86 |
| Tamarindo | |
+82 |
| Tortuguero | |
+84 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Tamarindo
Local time: 17:59
28 sep, monday
| 1800 |  |
82°F | E 5 mph |
| 2100 | |
82°F | NW 4 mph |
29 sep, tuesday
| 0000 |  |
82°F | NW 3 mph |
| 0300 | |
80°F | NW 4 mph |
| 0600 |  |
80°F | W 5 mph |
| 0900 |  |
84°F | S 1 mph |
| 1200 | |
86°F | E 9 mph |
| 1500 | |
86°F | NE 9 mph |