Average sea water temperature in September:
+84.4°F
| Minimum sea water temperature in September: | 87.6°F |
| Maximum sea water temperature in September: | 82.2°F |
Daily sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 86.5°F. The highest and lowest sea temperatures during the month were 87.6°F and 85.6°F.
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Monthly sea water temperature in Tamarindo, °F
Which Costa Rica resorts have warmest sea in September?
| Place name | September 2026 | September 2025 |
|---|---|---|
| Santa Teresa | 86.6°F | 83.8°F |
| Samara | 86.6°F | 83.7°F |
| San Jose | 86.5°F | 83.8°F |
| Cartago | 86.5°F | 83.9°F |
| Tamarindo | 86.4°F | 83.8°F |
| Quepos | 86.4°F | 83.9°F |
| Heredia | 86.4°F | 83.7°F |
| Jaco | 86.3°F | 83.7°F |
| El Roble | 86.3°F | 83.7°F |
| Alajuela | 86.3°F | 83.7°F |
| Playa Flamingo | 86.2°F | 83.8°F |
| Playas del Coco | 86.0°F | 83.8°F |
| Limon | 84.3°F | 84.6°F |
| Puerto Limon | 84.3°F | 84.6°F |
| Puerto Viejo de Talamanca | 84.2°F | 84.7°F |
| Cahuita | 84.1°F | 84.6°F |
| Tortuguero | 84.0°F | 84.4°F |
Best time for vacation in Tamarindo
Tamarindo on a weather map
Places in Costa Rica:
Name
°F
24 Hours Forecast
Tamarindo
Local time: 12:55
October 06, tuesday
1500
84°F
NE
9 mph
9 mph
1800
82°F
N
7 mph
7 mph
2100
81°F
N
4 mph
4 mph
October 07, wednesday
0000
79°F
NW
5 mph
5 mph
0300
77°F
NW
4 mph
4 mph
0600
77°F
W
5 mph
5 mph
0900
81°F
W
2 mph
2 mph
1200
84°F
SE
4 mph
4 mph
