HydroBASINS lev08 watershed · #1081161460
Bassin de Ongoche River
A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.
Crosses 8 administrative regions across 3 countries : Kuria West, Lake Victoria, Ndhiwa, Nyatike, Rorya +3
Sub-basin area
1 603,6km²
Upstream area
7 704,7km²
Discharge
65,79m³/s
Mean elev.
1 237m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Gucha3108 km²
- Bassin de Migori River1192 km²
8 dept-equivalent regions (GADM L2)
- 860.5 km²53.9% of basin
- 373.9 km²23.4% of basin
- 135.2 km²8.5% of basin
- 90.4 km²5.7% of basin
- 63.3 km²4.0% of basin
- 37.4 km²2.3% of basin
- 25.2 km²1.6% of basin
- Lake VictoriaLake Victoria · Uganda10.6 km²0.7% of basin
2 intersecting protected areas
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
621 distinct species · 5 756 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Graphe en cours d’indexation
Calcul du tissu écologique de cette entité.
Le graphe apparaîtra automatiquement dès que le calcul est terminé (rafraîchissement toutes les 2s).
Hydroclimate (BasinATLAS lev08)
Mean T°
22,2°C
Annual rain
1 115mm
Moisture idx (CMI)
-0,37
Runoff
234mm/an
PET
1 776mm
AET
943mm
Mean slope
2,5°
Water table
150cm
Forest
14%
Crops
16%
Urban
3%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)