| Station: | Peradeniya | Continent: | Asia | ||
| River: | Mahaweli Ganga | Major Basin : | Indian Ocean | ||
| Country: | Sri Lanka | Discharge into : | |||
| Observation Period: | 1949 - 1984 | Total Months: | 420 | ||
| Latitude (dec deg): | 7.28 N | Area (km2): | 1189 | ||
| Longitude (dec deg): | 80.62 E | Elevation (m): | 464 | ||
| Annual Discharge: (m3/s): | 66.7 | (km3/yr): | 2.1 | ||
| Annual Runoff: (l/s/km2): | 56.1 | (mm/yr): | 1770.7 |
| Mean for Observation Period | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| m3/sec | 31.3 | 19.9 | 16.6 | 32.1 | 60.5 | 96.7 | 100.3 | 91.3 | 84.5 | 98.3 | 97.3 | 69.3 |
| km3/mo | 0.1 | 0.0 | 0.0 | 0.1 | 0.2 | 0.3 | 0.3 | 0.2 | 0.2 | 0.3 | 0.3 | 0.2 |
| mm/mo | 70.5 | 40.5 | 37.3 | 70.0 | 136.4 | 210.7 | 226.0 | 205.6 | 184.1 | 221.5 | 212.0 | 156.2 |
| l/s/km2 | 26.3 | 16.7 | 13.9 | 27.0 | 50.9 | 81.3 | 84.4 | 76.8 | 71.0 | 82.7 | 81.8 | 58.3 |
