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River

Mae Klong

140 km from source to mouth · Thailand.

ThailandThailandFlows into Bay of Bangkok7th longest in Thailand

Follow the riverMonth by month

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

In numbers

Length

140km

Average flow

590m³/s

Basin

30,000km²

Drop

25m

from 25 m to 0 m

Country

1

The journey

From source to mouth

140 km of river and 19 stops on the way: 7 towns and cities on its banks, dams, bridges and the tributaries that feed it.

50 m0 m
Sourceat 25 m0 km
Mae Klong dam23 km
Tha Maka52,907 people46 km
Ban Pong57,559 people64 km
Wang Manao0.3 km²73 km
Ratchaburi92,448 people102 km
Chulalongkorn Bridge102 km
Wat Ket Karam120 km
Bay of Bangkokat 0 m140 km
050100140 km
  1. 0 kmSourceat 25 m
  2. 8 kmKhwae Yai Rivertributary
  3. 8 kmKhwae Noi Rivertributary
  4. 12 kmKanchanaburi63,699 people
  5. 23 kmMae Klong dam
  6. 25 kmTha Muang26,746 people
  7. 46 kmTha Maka52,907 people
  8. 64 kmBan Pong57,559 people
  9. 73 kmWang Manao0.3 km²
  10. 79 kmPhotharam36,248 people
  11. 102 kmRatchaburi92,448 people
  12. 102 kmChulalongkorn Bridge
  13. 120 kmWat Ket Karam
  14. 122 kmBang Khonthi Bridge
  15. 123 kmWat Tri Chinda Watthanaram
  16. 124 kmWat Pak Nam
  17. 125 kmWat Kasem Saranaram
  18. 127 kmWat Nang Wang
  19. 128 kmWat Suan Luang
  20. 134 kmSamut Songkhram35,065 people
  21. 140 kmBay of Bangkokat 0 m

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

River in central Thailand

At the mouth it carries 589 m³/s on average: an Olympic pool every 4.2 seconds. It drops from 25 m to 0 m, 0.2 m per kilometre on average. Its basin covers 30,000 km², about the size of AM. 1.4 million people live in it. Highest water: October; lowest: from January to April. It is heavily dammed: reservoirs can hold 144% of a year's flow.

Read more on Wikipedia

Where to start

  • RatchaburiLargest city on its banks · 92,448 people
  • Don Mueang International Airport (DMK)Nearest airport with scheduled flights, 95 km from the cityCar hire at DMK airport (Bangkok)Discover Cars · Affiliate link
  • On the water7 ferry piers, marinas, boat rentals and boat ramps along the river (OpenStreetMap)
  • Kayak and canoe2 put-ins and rapids mapped (OpenStreetMap)
  • From December to JanuaryThe best months to visit

Mae Klong, month by month

Highest water: October

Lowest water: from January to April. Best months to visit: from December to January.

210
25°6 mmJan
140
27°13 mmFeb
150
29°22 mmMar
220
30°61 mmApr
490
30°141 mmMay
640
29°116 mmJun
750
28°124 mmJul
730
28°123 mmAug
1,100
28°235 mmSep
1,500
27°224 mmOct
1,200
26°68 mmNov
650
24°11 mmDec
Water (estimated flow)Air (average) Rain (mm)Best months

From about 140 m³/s in the lowest month to 1,500 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

Mae Klong: the basin in numbers

28,648 km² of land send their water to this river. This is what lives on it.

DammedReservoirs can hold 144% of a year's flow: much of the river is a chain of lakes.
  • 1.4millionpeople live in the basin
  • 50/km²people per km²
  • 451maverage altitude of the basin
  • 1,661mmof rain a year (basin average)
  • 25.1°Caverage air temperature
  • 57%protected areas
  • 2.3%covered by lakes
  • 27km³held in reservoirs

What covers the basin

  • 29% Forest
  • 13% Cropland
  • 2% 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

Mae Klong: what you find on the way

  • 2DamsMae Klong Dam barrage, Mae Klong Dam
  • 1Weirs
  • 3Locks
  • 2Rapids
  • 1Boat ramps
  • 6Ferry piers
  • 1River beachesTha Lo Beach (Wat Ban Thong)

From OpenStreetMap, within 2.1 km of the river. Not mapped is not the same as not there.

Cross-checked with our atlases

Mae Klong 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.

  • 1lake on its wayLakeyas
  • 1beach at the mouth or on the banksCoastya
  • 49mountains at the sourcePeakyas

Lakes and reservoirs (1)

Lakes it flows through, by Lakeyas

  1. Wang Manaokm 710.3km²

Lakeyas is coming soonOpen Lakeyas ↗

Beaches (1)

At the mouth (25 km) and on the banks, by Coastya

  1. Ao Bang Tabun12 km away · cove30.7°C

Open Coastya ↗

Mountains at the source (49)

Within 15 km of the source, by Peakyas

  1. Khao Wang Hip4.7 km away
  2. Khao Tong6.1 km away
  3. Khao Raet9.2 km away
  4. Khao Raeng8.4 km away
  5. Khao Pu Khong14 km away
  6. Khao Noi7.9 km away
  7. Khao Laem12 km away
  8. Khao I Tum12 km away

41 more on PeakyasOpen Peakyas ↗

From space

The source and the mouth, seen from orbit

Mae Klong: satellite view of the source
The source14 km across
Mae Klong: satellite view of the mouth
The mouth23 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

Mae Klong in pictures

On the Mae Klong 5
BrokenSphere · CC BY 3.0
Bang Kung Barracks - Maeklong River View - panoramio
Kasom SKULTAB · CC BY-SA 3.0
Fishing hut in the delta of Mae Klong River in Thailand P2131441
Tigeroma · CC BY-SA 4.0
On the Mae Klong 1
BrokenSphere · CC BY 3.0

Tributaries

Where it flows, and what flows into it

Tributaries (4)

Also: Khwae Yai River, Khwae Noi River, Khlong Am Phawa, Khlong Bang Noi

Where these numbers come from

Name, length, placesWikidata (Q1194112) · 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, Coastya, 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