The Nicaragua resorts with the warmest sea water temperature in September are Leon, El Transito and San Diego.
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 2026 | September 2025 | September 2024 |
|---|---|---|---|
| Leon | 90.3°F | 89.3°F | 90.4°F |
| El Transito | 89.5°F | 88.8°F | 89.7°F |
| San Diego | 89.3°F | 88.7°F | 89.6°F |
| Pochomil | 89.0°F | 88.7°F | 89.8°F |
| Masachapa | 89.0°F | 88.7°F | 89.8°F |
| Las Salinas | 88.6°F | 87.7°F | 89.4°F |
| Granada | 88.6°F | 89.7°F | 90.7°F |
| Masaya | 88.5°F | 89.7°F | 90.7°F |
| Apoyo Lake | 88.5°F | 89.7°F | 90.7°F |
| Ciudad Sandino | 88.3°F | 88.4°F | 89.8°F |
| Managua | 88.1°F | 88.4°F | 89.8°F |
| San Juan del Sur | 88.1°F | 87.5°F | 89.1°F |
| Isla de Ometepe | 87.8°F | 88.5°F | 89.9°F |
| Corn Islands | 87.8°F | 89.0°F | 90.2°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 |  |
+76 |
| Ciudad Sandino | |
+80 |
| Corn Islands |  |
+86 |
| El Transito |  |
+80 |
| Granada | |
+76 |
| Isla de Ometepe | |
+82 |
| Las Salinas | |
+84 |
| Leon | |
+78 |
| Managua | |
+80 |
| Masachapa | |
+80 |
| Masaya | |
+78 |
| Pochomil | |
+80 |
| San Diego | |
+80 |
| San Juan del Sur | |
+82 |
| Somoto | |
+76 |
