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River

Sajó

229 km from source to mouth · Hungary and Slovakia.

HungarySlovakiaHungary and SlovakiaFlows into Tisza7th longest in Hungary

Follow the riverMonth by month

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

In numbers

Length

229km

Average flow

70m³/s

Basin

12,700km²

Drop

440m

from 528 m to 88 m

Countries

2

The journey

From source to mouth

229 km of river and 15 stops on the way: 11 towns and cities on its banks, dams, bridges and the tributaries that feed it.

528 m88 m
Sourceat 528 m0 km
Palcmanská Maša Reservoir0.6 km²16 km
Gelnica5,829 people69 km
Ružín2.0 km²86 km
Košice225,044 people116 km
Čaňa6,109 people130 km
Encs6,886 people166 km
Szinvatributary192 km
Tiszaat 88 m229 km
050100150200229 km
  1. 0 kmSourceat 528 m
  2. 16 kmPalcmanská Maša Reservoir0.6 km²
  3. 39 kmNálepkovo3,583 people
  4. 63 kmPrakovce3,344 people
  5. 69 kmGelnica5,829 people
  6. 86 kmRužín2.0 km²
  7. 116 kmKošice225,044 people
  8. 123 kmValaliky4,605 people
  9. 130 kmČaňa6,109 people
  10. 166 kmEncs6,886 people
  11. 192 kmSzinvatributary
  12. 192 kmOnga4,697 people
  13. 197 kmHernádnémeti3,464 people
  14. 203 kmSajólád3,001 people
  15. 215 kmHornádtributary
  16. 224 kmTiszaújváros17,295 people
  17. 229 kmTiszaat 88 m

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

River

At the mouth it carries 70 m³/s on average: an Olympic pool every 36 seconds. It drops from 528 m to 88 m, 1.9 m per kilometre on average. Its basin covers 12,700 km², about the size of BS. 5.7 million people live in it. Highest water: from March to May; lowest: from January to February. Its dams hold back little of its water (6.5% of a year's flow).

Read more on Wikipedia

Where to start

  • KošiceLargest city on its banks · 225,044 people
  • Košice International Airport (KSC)Nearest airport with scheduled flights, 6 km from the cityCar hire at KSC airport (Košice)Discover Cars · Affiliate link
  • On the water20 ferry piers, marinas, boat rentals and boat ramps along the river (OpenStreetMap)
  • From May to SeptemberThe best months to visit

Sajó, month by month

Highest water: from March to May

Lowest water: from January to February. Best months to visit: from May to September.

410
-3°31 mmJan
200
-1°32 mmFeb
1,200
4°30 mmMar
1,200
10°42 mmApr
1,300
15°64 mmMay
900
18°87 mmJun
970
20°78 mmJul
960
19°70 mmAug
790
15°46 mmSep
700
10°39 mmOct
780
4°50 mmNov
580
-1°42 mmDec
Water (estimated flow)Air (average) Rain (mm)Best months

From about 200 m³/s in the lowest month to 1,300 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

Sajó: the basin in numbers

62,480 km² of land send their water to this river. This is what lives on it.

Lightly regulatedReservoirs can hold 6.5% of a year's flow.
  • 5.7millionpeople live in the basin
  • 92/km²people per km²
  • 438maverage altitude of the basin
  • 705mmof rain a year (basin average)
  • 8.0°Caverage air temperature
  • 11%protected areas
  • 0.2%covered by lakes
  • 1.1km³held in reservoirs

What covers the basin

  • 52% Forest
  • 27% Cropland
  • 22% 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

Sajó: what you find on the way

  • 15DamsVodné dielo Ružín 2, Malá Lodina, Gibárti vízerőmű, Bőcsi duzzasztómű and 12 more
  • 47WeirsHať, Hať Vyšné Opátske, Hať Nad Jazerom and 44 more
  • 7WaterfallsNálepkove vodopády, Suchý vodopád and 5 more
  • 7Boat rampsSklz Malá Lodina, Sklz Kysák, Sklz Súdky Ťahanovce and 4 more
  • 4Ferry piersMuhi, Köröm, Girincs and 1 more
  • 1MarinasJachtárske stredisko mládeže
  • 8Boat rentalsKajak.app, splavujeme.sk and 6 more
  • 1River beachesMuhi strand

From OpenStreetMap, within 2.3 km of the river. Not mapped is not the same as not there.

Cross-checked with our atlases

Sajó 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.

  • 2lakes on its wayLakeyas
  • 24mountains at the sourcePeakyas

Lakes and reservoirs (2)

Lakes it flows through, by Lakeyas

  1. Palcmanská Maša Reservoirkm 180.6km²
  2. Ružínkm 96 · 54 m deep2.0km²

Lakeyas is coming soonOpen Lakeyas ↗

Mountains at the source (24)

Within 15 km of the source, by Peakyas

  1. Kráľova hoľa9.1 km away1,946m
  2. Stredná hoľa12 km away1,876m
  3. Orlová13 km away1,840m
  4. Bartková14 km away1,790m
  5. Kráľova skala7.4 km away1,690m
  6. Stolica7.2 km away1,476m
  7. Úplaz9.7 km away1,555m
  8. Kohút12 km away1,409m

16 more on PeakyasOpen Peakyas ↗

From space

The source and the mouth, seen from orbit

Sajó: satellite view of the source
The source14 km across
Sajó: satellite view of the mouth
The mouth34 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

Sajó in pictures

A Sajó folyó Sajónémetinél
Farkas Gergely · Public domain
Sajó látképe
Marosvari.gergo · CC BY-SA 3.0
A Keleméri-patak torkolata a Sajóba
Farkas Gergely · Public domain
Bodva-meets-Sajo
Szalai Gábor · CC BY-SA 3.0

Tributaries

Where it flows, and what flows into it

Tributaries (15)

Also: Bodva, Rimava, Szinva, Turiec, Muráň, Štítnik, Dobšinský potok, Hangony Stream, Bán Stream, Takta, Lapša, Rožňavský potok, Súľovský potok, Kaloša

Where these numbers come from

Name, length, placesWikidata (Q576032) · 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