| Station: | Pedre Ribeiradio | Continent: | Europe | ||
| River: | Vouga | Major Basin : | Atlantic Ocean | ||
| Country: | Portugal | Discharge into : | |||
| Observation Period: | 1976 - 1979 | Total Months: | 48 | ||
| Latitude (dec deg): | 40.75 N | Area (km2): | 928 | ||
| Longitude (dec deg): | 8.28 W | Elevation (m): | 50 | ||
| Annual Discharge: (m3/s): | 40.4 | (km3/yr): | 1.3 | ||
| Annual Runoff: (l/s/km2): | 43.4 | (mm/yr): | 1368.2 |
| Mean for Observation Period | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| m3/sec | 60.6 | 176.5 | 57.3 | 33.2 | 20.0 | 10.7 | 3.3 | 1.1 | 1.0 | 16.0 | 20.8 | 92.8 |
| km3/mo | 0.2 | 0.4 | 0.2 | 0.1 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.2 |
| mm/mo | 174.9 | 460.2 | 165.3 | 92.9 | 57.7 | 29.7 | 9.7 | 3.2 | 2.7 | 46.1 | 58.1 | 267.7 |
| l/s/km2 | 65.3 | 190.2 | 61.7 | 35.8 | 21.6 | 11.5 | 3.6 | 1.2 | 1.0 | 17.2 | 22.4 | 99.9 |
