| Data | Sources | Region/station | Period | Geographic situations | ||
| Latitude | Longitude | Altitude (m) | ||||
| Flo flow rates | DG Eau Cotonou | Athiémé river | 1968-2008 | 06˚34'44"N | 01˚39'53"E | 8.2 |
| CEB | Dam Nangbéto down river | 1987-2008 | 07˚25'N | 01˚26'E | 150 | |