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River

Uday River

342 km from source to mouth · Ukraine.

UkraineUkraineFlows into Sula River

Follow the riverMonth by month

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

In numbers

Length

342km

Average flow

9.4m³/s

Basin

7,030km²

Drop

46m

from 134 m to 88 m

Country

1

The journey

From source to mouth

342 km of river and 11 stops on the way: 5 towns and cities on its banks, dams, bridges and the tributaries that feed it.

138 m88 m
Rozhnivkaat 134 m0 km
Ichenkatributary62 km
Pryluky52,553 people89 km
Smoshtributary120 km
Lysohirtributary144 km
Ladan6,719 people172 km
Rudatributary228 km
Perevidtributary229 km
Sula Riverat 88 m342 km
0100200300342 km
  1. 0 kmRozhnivkaat 134 m
  2. 62 kmIchenkatributary
  3. 89 kmPryluky52,553 people
  4. 120 kmSmoshtributary
  5. 144 kmLysohirtributary
  6. 160 kmVarva7,689 people
  7. 172 kmLadan6,719 people
  8. 176 kmZhuravka3,012 people
  9. 228 kmRudatributary
  10. 229 kmPerevidtributary
  11. 243 kmPyryatyn14,988 people
  12. 328 kmMnohatributary
  13. 342 kmSula Riverat 88 m

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

River in Ukraine

At the mouth it carries 9.4 m³/s on average: an Olympic pool every 266 seconds. It drops from 134 m to 88 m, 0.1 m per kilometre on average. Its basin covers 7,030 km², about the size of PS. 222,000 people live in it. Highest water: from April to May; lowest: from December to March. No large dam holds it back: it is one of the world's free-flowing rivers.

Read more on Wikipedia

Where to start

Uday River, month by month

Highest water: from April to May

Lowest water: from December to March. Freezing months (average below −4 °C): from January to February. Best months to visit: from May to September.

12
-6°43 mmJan
4.7
-5°38 mmFeb
15
0°37 mmMar
55
9°46 mmApr
50
16°42 mmMay
45
19°70 mmJun
24
20°77 mmJul
25
19°60 mmAug
23
14°46 mmSep
21
8°38 mmOct
25
2°48 mmNov
18
-2°54 mmDec
Water (estimated flow)Air (average) Rain (mm)Best months

From about 4.7 m³/s in the lowest month to 55 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

Uday River: the basin in numbers

6,995 km² of land send their water to this river. This is what lives on it.

Free-flowingDams upstream can hold only 0.0% of a year's flow: the river still keeps its natural rhythm.
  • 222,000people live in the basin
  • 32/km²people per km²
  • 136maverage altitude of the basin
  • 597mmof rain a year (basin average)
  • 7.6°Caverage air temperature
  • 4%protected areas
  • 0.3%covered by lakes

What covers the basin

  • 6% Forest
  • 71% Cropland
  • 9% Pasture
  • 1% 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

Uday River: what you find on the way

  • 3River beaches

From OpenStreetMap, within 1.7 km of the river. Not mapped is not the same as not there.

From space

The source and the mouth, seen from orbit

Uday River: satellite view of the source
The source14 km across
Uday River: satellite view of the mouth
The mouth11 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.

Where these numbers come from

Name, length, placesWikidata (Q367366) · CC0
Course, profile, basinRiverATLAS v1.0 (HydroATLAS, Linke et al. 2019) · CC BY 4.0 — followed along the river network from the point 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

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.

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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