| Station: | El Castillo | Continent: | North America | ||
| River: | San Juan | Major Basin : | San Juan | ||
| Country: | Nicaragua | Discharge into : | Atlantic Ocean | ||
| Observation Period: | 1969 - 1978 | Total Months: | 89 | ||
| Latitude (dec deg): | 11.02 N | Area (km2): | 32818 | ||
| Longitude (dec deg): | 84.42 W | Elevation (m): | 26 | ||
| Annual Discharge: (m3/s): | 419.9 | (km3/yr): | 13.2 | ||
| Annual Runoff: (l/s/km2): | 12.7 | (mm/yr): | 401.7 |
| Mean for Observation Period | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| m3/sec | 484.8 | 397.8 | 326.5 | 272.2 | 311.0 | 324.8 | 404.9 | 449.0 | 488.7 | 522.3 | 525.1 | 504.7 |
| km3/mo | 1.3 | 1.0 | 0.9 | 0.7 | 0.8 | 0.8 | 1.1 | 1.2 | 1.3 | 1.4 | 1.4 | 1.4 |
| mm/mo | 39.6 | 29.3 | 26.6 | 21.5 | 25.4 | 25.7 | 33.0 | 36.6 | 38.6 | 42.6 | 41.5 | 41.2 |
| l/s/km2 | 14.8 | 12.1 | 9.9 | 8.3 | 9.5 | 9.9 | 12.3 | 13.7 | 14.9 | 15.9 | 16.0 | 15.4 |
