Jalaur River

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Jalaur River
Jalaud River
Jalaur River in San Enrique.jpg
Jalaur River passing through San Enrique, Iloilo, 2019
Jalaur River is located in Visayas
Jalaur River
Jalaur River is located in Philippines
Jalaur River
CountryPhilippines Philippines
RegionWestern Visayas
Physical characteristics
SourceCentral Panay Mountain Range
 ⁃ locationMount Baloy, Lambunao, Iloilo
 ⁃ elevation1,920 m (6,300 ft)
MouthGuimaras Strait
 ⁃ location
Dumangas, iloilo
 ⁃ elevation
0 m (0 ft)
Length123 km (76 mi)
Basin size1,503 km2 (580 sq mi)
 ⁃ locationGuimaras Strait
 ⁃ average40.29 m3/s (1,423 cu ft/s)
 ⁃ minimum30.42 m3/s (1,074 cu ft/s)
 ⁃ maximum50.17 m3/s (1,772 cu ft/s)
Basin features
 ⁃ left
 ⁃ right

Jalaur River,[1] also known as Jalaud River, is the second longest river in Panay island and the second largest by drainage basin, only Panay River in Capiz has the longest and the largest river system in Panay. Jalaur river ranked 17th largest river system in the Philippines in terms of drainage basin size. It has an estimated drainage area of 1,503 square kilometres (580 sq mi) and travels 123 kilometres (76 mi) from its source to its mouth in the Guimaras Strait. It drains the eastern portion of the island and traverses through Passi City and the towns of Leganes, Zarraga, Dumangas, Barotac Nuevo, Pototan, Dingle, San Enrique, Duenas, and Calinog.[2]

The river is of great economic importance to the province of Iloilo. It provides irrigation to farmlands in the province as well as providing a source of potable water for its inhabitants.[3]



The river has an annual average discharge of 40.29 cubic metres per second (1,423 cu ft/s).[4]


The lower reached of Jalaur River experiences seasonal flooding. When there is heavy downpour, during the months of June–September, the river overflows and floods the surrounding area. Panay island is also located within the typhoon belt, which experiences several typhoons annually, is also a major factor of flooding of the river.[5]




Economic Importance[edit]

Jalaur River is used in irrigating 15,519 hectares (38,350 acres) in the province of Iloilo through the Jalaur River Irrigation System.[3]

The Metro Iloilo Water District Services, the potable water provider for Iloilo City also source out some of their water requirement from the river.


  1. ^ "Iloilo - General Features (Water Resources)". Archived from the original on 2008-03-31. Retrieved 2008-09-12.
  2. ^ "Western Visayas Regional Development Plan 2004-2010" (PDF). National Economic Development Authority (NEDA) - Region 6. 2004. p. 13. Retrieved 2008-09-13.[permanent dead link]
  3. ^ a b "Iloilo Province - Water Facilities". Archived from the original on 2008-04-05. Retrieved 2008-09-12.
  4. ^ "River Discharge Database - Jalaur River". Center For Sustainability & Global Environment, University of Wisconsin. September 3, 2008. Archived from the original on 2010-06-19. Retrieved 2008-09-13.
  5. ^ "Rains leave heavy crop damage in Capiz, Iloilo". Manila Times. January 14, 2007. Retrieved 2008-09-13.[dead link]

Coordinates: 10°57′N 122°40′E / 10.950°N 122.667°E / 10.950; 122.667