The Nicaragua resorts with the warmest sea water temperature in September are Granada, Masaya and Apoyo Lake.
Below you can see a list of all popular Nicaragua resorts and information about sea water temperature in September for the last two years.
| Resort Name | September 2025 | September 2024 | September 2023 |
|---|---|---|---|
| Granada | 89.7°F | 90.7°F | 90.9°F |
| Masaya | 89.7°F | 90.7°F | 90.9°F |
| Apoyo Lake | 89.7°F | 90.7°F | 90.9°F |
| Leon | 89.3°F | 90.4°F | 91.1°F |
| Corn Islands | 89.0°F | 90.2°F | 89.9°F |
| El Transito | 88.8°F | 89.7°F | 90.6°F |
| Pochomil | 88.7°F | 89.8°F | 90.1°F |
| Masachapa | 88.7°F | 89.8°F | 90.1°F |
| San Diego | 88.7°F | 89.6°F | 90.1°F |
| Isla de Ometepe | 88.5°F | 89.9°F | 90.0°F |
| Managua | 88.4°F | 89.8°F | 89.7°F |
| Ciudad Sandino | 88.4°F | 89.8°F | 89.5°F |
| Las Salinas | 87.7°F | 89.4°F | 89.5°F |
| San Juan del Sur | 87.5°F | 89.1°F | 89.1°F |
Please see following sea water temperature averages charts for the warmest Nicaragua resorts in September.
You can also get the same information for the every other month of the year when the average sea water temperature is greater then 70°F.
Nicaragua Resorts:
NAME
F°
| Apoyo Lake |  |
+70 |
| Ciudad Sandino | |
+70 |
| Corn Islands |  |
+84 |
| El Transito |  |
+80 |
| Granada | |
+74 |
| Isla de Ometepe | |
+78 |
| Las Salinas | |
+76 |
| Leon | |
+74 |
| Managua | |
+70 |
| Masachapa | |
+80 |
| Masaya | |
+72 |
| Pochomil | |
+80 |
| San Diego | |
+80 |
| San Juan del Sur | |
+78 |
| Somoto | |
+60 |
