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River

Chi River

765 km from source to mouth · Thailand.

ThailandThailandFlows into Mun River2nd longest in Thailand

Follow the riverMonth by month

SourceMouthMueang Yasothon
The river and every tributary in its basin, drawn from RiverATLAS (CC BY 4.0).

In numbers

Length

765km

Average flow

290m³/s

Basin

9,300km²

Drop

202m

from 315 m to 113 m

Country

1

The journey

From source to mouth

765 km of river and 10 stops on the way: 5 towns and cities on its banks, dams, bridges and the tributaries that feed it.

315 m113 m
Sourceat 315 m0 km
Bueng Lahan13 km²136 km
Ang Kep Nam Lahan Luk Nok2.2 km²167 km
Ang Kep Nam Nong Saeng1.2 km²255 km
Kosum Phisai10,672 people377 km
Maha Sarakham51,584 people415 km
Ang Kep Nam Bung Chiang Khwan0.5 km²490 km
Ban Selaphum17,412 people529 km
Mueang Yasothon129,424 people607 km
Ang Kep Nam Huai San Dot0.8 km²665 km
Mun Riverat 113 m765 km
0200400600765 km
  1. 0 kmSourceat 315 m
  2. 136 kmBueng Lahan13 km²
  3. 167 kmAng Kep Nam Lahan Luk Nok2.2 km²
  4. 255 kmAng Kep Nam Nong Saeng1.2 km²
  5. 377 kmKosum Phisai10,672 people
  6. 415 kmMaha Sarakham51,584 people
  7. 490 kmAng Kep Nam Bung Chiang Khwan0.5 km²
  8. 529 kmBan Selaphum17,412 people
  9. 607 kmYasothon20,414 people
  10. 607 kmMueang Yasothon129,424 people
  11. 665 kmAng Kep Nam Huai San Dot0.8 km²
  12. 765 kmMun Riverat 113 m

Water level along the river (RiverATLAS; the height is exaggerated). Towns: GeoNames and Wikidata; bridges, dams and tributaries: Wikidata.

River in Thailand

At the mouth it carries 290 m³/s on average: an Olympic pool every 8.6 seconds. It drops from 315 m to 113 m, 0.3 m per kilometre on average. Its basin covers 9,300 km², about the size of CY. 5.9 million people live in it. Highest water: September; lowest: from December to March. Dams and reservoirs hold back a large share of its water (40% of a year's flow).

Read more on Wikipedia

Where to start

Chi River, month by month

Highest water: September

Lowest water: from December to March. Best months to visit: from November to February.

90
23°4 mmJan
91
26°15 mmFeb
100
28°36 mmMar
140
30°76 mmApr
280
29°171 mmMay
380
28°169 mmJun
470
28°182 mmJul
530
28°210 mmAug
690
27°280 mmSep
550
27°91 mmOct
360
25°15 mmNov
130
23°4 mmDec
Water (estimated flow)Air (average) Rain (mm)Best months

From about 90 m³/s in the lowest month to 690 m³/s in the highest. An estimate: the monthly flow is modelled from the lowest and highest months of WaterGAP (RiverATLAS, 1971–2000) and the rain and snow along the river (WorldClim). Dams change the real rhythm. The chip is the average air temperature; below it, the month's rain.

Plan the trip

Plan the trip: boat trips, a bed by the river, a car

Some links above are affiliate links: if you book through them we may earn a commission, at no extra cost to you. It never changes what the data on this page says.

The basin

Chi River: the basin in numbers

49,404 km² of land send their water to this river. This is what lives on it.

Heavily regulatedReservoirs can hold 40% of a year's flow: dams shape its seasons.
  • 5.9millionpeople live in the basin
  • 120/km²people per km²
  • 259maverage altitude of the basin
  • 1,245mmof rain a year (basin average)
  • 26.3°Caverage air temperature
  • 11%protected areas
  • 1.4%covered by lakes
  • 3.9km³held in reservoirs

What covers the basin

  • 7% Forest
  • 46% Cropland
  • 1% Pasture
  • 4% Towns and cities

RiverATLAS (HydroATLAS v1.0, CC BY 4.0): land cover, people, protected areas, glaciers and dams over the whole basin upstream of the mouth.

Along the river

Chi River: what you find on the way

  • 14Dams
  • 13Weirs

From OpenStreetMap, within 2.2 km of the river. Not mapped is not the same as not there.

Cross-checked with our atlases

Chi River in our other atlases

What our sister atlases know about the waterfalls on this river, the lakes it flows through, the beaches at its mouth, the mountains where it rises and the islands off its mouth.

  • 5lakes on its wayLakeyas
  • 11mountains at the sourcePeakyas

Lakes and reservoirs (5)

Lakes it flows through, by Lakeyas

  1. Bueng Lahankm 11213km²
  2. Ang Kep Nam Lahan Luk Nokkm 1382.2km²
  3. Ang Kep Nam Nong Saengkm 2101.2km²
  4. Ang Kep Nam Bung Chiang Khwankm 4040.5km²
  5. Ang Kep Nam Huai San Dotkm 5480.8km²

Lakeyas is coming soonOpen Lakeyas ↗

Mountains at the source (11)

Within 15 km of the source, by Peakyas

  1. Khao Yot Chi2.9 km away
  2. Khao Um Nang15 km away
  3. Khao Noen Sawang10 km away
  4. Khao Khat1.9 km away
  5. Khao San Baeng Nam4.7 km away
  6. Phu Peng13 km away
  7. Khao Thewada11 km away
  8. Khao Foi Lom9.6 km away

3 more on PeakyasOpen Peakyas ↗

From space

The source and the mouth, seen from orbit

Chi River: satellite view of the source
The source14 km across
Chi River: satellite view of the mouth
The mouth30 km across

Sentinel-2 cloudless 2016 by EOX IT Services GmbH (contains modified Copernicus Sentinel data 2016), CC BY 4.0. The glowing line is the river as drawn by RiverATLAS.

Photos

Chi River in pictures

Ferry on river chi
Woodstone · Public domain

Where these numbers come from

Name, length, placesWikidata (Q1071554) · CC0
Course, profile, basinRiverATLAS v1.0 (HydroATLAS, Linke et al. 2019) · CC BY 4.0 — followed from the source to the mouth given by Wikidata
FlowWaterGAP (RiverATLAS), 1971–2000 · CC BY 4.0
Climate along the riverWorldClim (RiverATLAS), 1970–2000 · CC BY 4.0
Towns, bridges, damsWikidata · CC0; GeoNames · CC BY 4.0
Along the river© OpenStreetMap contributors · ODbL
ImagesEOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons
Our other atlasesLakeyas, Peakyas — Wikidata · CC0; © OpenStreetMap contributors · ODbL; GeoNames · CC BY 4.0; HydroLAKES · CC BY 4.0; NOAA OISST

Every source and licence is on the data sources page.

The family

Do you prefer beaches, lakes, mountains, waterfalls, islands, rivers or canyons?

Same idea, other landscapes: field atlases built on open data, month by month, in seven languages.

beachesCoastyaFind your beach: sea temperature, sun and swimming month by month.Visit
lakesLakeyasEvery lake on Earth: water temperature, ice, depth and the shore.Coming soonVisit
mountainsPeakyasEvery summit in 3D: summit weather, the 0 °C line, huts and trails.Visit
waterfallsCascadyasEvery waterfall: height, flow month by month and when it roars.Coming soonVisit
islandsIslandyasEvery island from the sea up: size, sea temperature, ferries and 3D.Coming soonVisit
riversRiveryasEvery river from source to sea: the journey, the flow and the basin in numbers.You are here
canyonsCanyonyasEvery canyon cut to scale: depth to the floor, rim and floor temperatures, trails and viewpoints.Coming soonVisit