River
Pa Sak River
513 km from source to mouth · Thailand.
ThailandFlows into Chao Phraya River5th longest in Thailand
In numbers
Length
513km
Average flow
220m³/s
Basin
16,291km²
Drop
319m
from 319 m to 0 m
Country
1
The journey
From source to mouth
513 km of river and 20 stops on the way: 9 towns and cities on its banks, dams, bridges and the tributaries that feed it.
- 0 kmSourceat 319 m
- 80 kmLom Sak17,309 people
- 131 kmPhetchabun50,656 people
- 253 kmWichian Buri39,272 people
- 315 kmLam Sonthitributary
- 329 kmChai Badan25,196 people
- 381 kmPa Sak Jolasid Dam
- 424 kmKaeng Khoi30,332 people
- 438 kmAng Kep Nam Khlong Phreao0.9 km²
- 440 kmSaraburi67,763 people
- 449 kmWat Samuha Pradit Tharam
- 456 kmWat Muang Ngam
- 462 kmWat Satue
- 467 kmTha Ruea19,116 people
- 489 kmWat Mai Chumphon
- 489 kmNakhon Luang15,008 people
- 501 kmLopburi Rivertributary
- 501 kmWat Pa Kho
- 502 kmWat Mondop
- 503 kmPridi-Thamrong Bridge
- 503 kmPhra Nakhon Si Ayutthaya50,830 people
- 513 kmChao Phraya Riverat 0 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 219 m³/s on average: an Olympic pool every 11 seconds. It drops from 319 m to 0 m, 0.6 m per kilometre on average. Its basin covers 16,291 km², about the size of SZ. 2.2 million people live in it. Highest water: September; lowest: from January to April. It is heavily dammed: reservoirs can hold 86% of a year's flow.
Where to start
- SaraburiLargest city on its banks · 67,763 people
- Don Mueang International Airport (DMK)Nearest airport with scheduled flights, 77 km from the cityCar hire at DMK airport (Bangkok)Discover Cars · Affiliate link↗
- On the water15 ferry piers, marinas, boat rentals and boat ramps along the river (OpenStreetMap)
- From November to JanuaryThe best months to visit
Pa Sak River, month by month
Highest water: September
Lowest water: from January to April. Best months to visit: from November to January.
From about 70 m³/s in the lowest month to 670 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
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The basin
Pa Sak River: the basin in numbers
18,857 km² of land send their water to this river. This is what lives on it.
- 2.2millionpeople live in the basin
- 116/km²people per km²
- 211maverage altitude of the basin
- 1,197mmof rain a year (basin average)
- 26.8°Caverage air temperature
- 9%protected areas
- 0.7%covered by lakes
- 5.9km³held in reservoirs
What covers the basin
- 18% Forest
- 41% Cropland
- 1% Pasture
- 6% 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
Pa Sak River: what you find on the way
- 21Weirs
- 2WaterfallsWang Kan Lueang Waterfall
- 10Ferry piersWat Khun Phrom Ferry Terminal, Wat Bang Kacha Ferry Terminal, Wat Phananchoeng Ferry Terminal and 7 more
- 1Marinas
From OpenStreetMap, within 2.0 km of the river. Not mapped is not the same as not there.
Cross-checked with our atlases
Pa Sak 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.
1lake on its wayLakeyas
18mountains at the sourcePeakyas
Lakes and reservoirs (1)
Lakes it flows through, by Lakeyas
- Ang Kep Nam Khlong Phreaokm 3870.9km²
Lakeyas is coming soonOpen Lakeyas ↗
Mountains at the source (18)
Within 15 km of the source, by Peakyas
- Phu Plaek11 km away
- Phu Pha Lom9.7 km away
- Khao Khrok Mahon8.1 km away
- Khao Khok Phu Khon8.9 km away
- Phu Ang Lang11 km away
- Phu Ang Chok1.1 km away
- Pae San Phen3.7 km away
- Phu Khi Nak9.9 km away
10 more on PeakyasOpen Peakyas ↗
From space
The source and the mouth, seen from orbit
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
Pa Sak River in pictures
Tributaries
Where it flows, and what flows into it
It flows into
Chao Phraya RiverThailand372 km840 m³/sTributaries (3)
Also: Lopburi River, Lam Sonthi, Huai Pa Daeng
In the same basin
Myanmar
LaosWhere these numbers come from
| Name, length, places | Wikidata (Q1152315) · CC0 |
|---|---|
| Course, profile, basin | RiverATLAS v1.0 (HydroATLAS, Linke et al. 2019) · CC BY 4.0 — followed from the source to the mouth given by Wikidata |
| Flow | WaterGAP (RiverATLAS), 1971–2000 · CC BY 4.0 |
| Climate along the river | WorldClim (RiverATLAS), 1970–2000 · CC BY 4.0 |
| Towns, bridges, dams | Wikidata · CC0; GeoNames · CC BY 4.0 |
| Along the river | © OpenStreetMap contributors · ODbL |
| Images | EOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons |
| Our other atlases | Lakeyas, 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
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