Una river
The Una is a European river flowing through Bosnia and Herzegovina. As of 2026-10-10, the Una was flowing at about 31.753 m³/s at the Kostajnica gauge.
- Canonical name
- Una
- Countries
- Bosnia and Herzegovina
- Maximum upstream drainage area
- 6,501 km²
- Mapped river length
- 66 km
- Gauging stations
- 1
- Latest measured discharge
- 31.753 m³/s (Kostajnica, 2026-10-10)
Gauging stations on the Una
The following gauging station reports discharge for the Una. Discharge is in cubic metres per second (m³/s).
| Station | Country | Discharge (m³/s) | Historical Comparison | Observed | Measurement | Data quality | Provider | Lat, Lon | Source |
|---|---|---|---|---|---|---|---|---|---|
| Kostajnica | Croatia | 31.753 | — | instantaneous | unverified automatic-gauge data | Sava Hydrological Information System | 45.222, 16.549 | source |
Data, sources & timestamps
Geometry is the HydroRIVERS network (HydroSHEDS): European reaches with at least 500 km² of upstream catchment, merged into chains between confluences. Flow direction comes from the network itself; river names are the canonical English label joined from provider metadata and Natural Earth, with local-language aliases retained.
Discharge is normalised observed streamflow from official national hydrology providers, measured where a gauge sits on the river and interpolated between gauges. Pale/estimated values are derived from drainage area × the local specific discharge of nearby gauges and are never presented as measurements.