HydroBASINS lev08 watershed · #5080144080
Bassin de Sungai Sekayam
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 6 administrative regions across 2 countries : Bau, Bengkayang, Kuching, Landak, Sanggau +1
Sub-basin area
1 052,1km²
Upstream area
1 052,3km²
Discharge
74,75m³/s
Mean elev.
274m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
6 dept-equivalent regions (GADM L2)
- 841.2 km²80.3% of basin
- Bengkayang174.6 km²16.7% of basin
- 12.1 km²1.2% of basin
- 11.0 km²1.0% of basin
- 8.3 km²0.8% of basin
- 0.1 km²0.0% of basin
1 intersecting protected areas
Gunung Nyiut Penrissen
IUCN IaNature Reserve
23.48 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
446 distinct species · 827 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Not enough documented interactions to build a meaningful graph for this territory.
Hydroclimate (BasinATLAS lev08)
Mean T°
25,5°C
Annual rain
3 318mm
Moisture idx (CMI)
0,53
Runoff
2 205mm/an
PET
1 573mm
AET
1 572mm
Mean slope
8,2°
Water table
224cm
Forest
23%
Crops
49%
Urban
1%
Protected
18%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)