Skip to content
riveryas
EN

River

Onega

416 km from source to mouth · Russia.

RussiaRussiaFlows into Onega Bay

Follow the riverMonth by month

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

In numbers

Length

416km

Average flow

500m³/s

Basin

56,900km²

Drop

202m

from 104 m to -98 m

Country

1

The journey

From source to mouth

416 km of river and 20 stops on the way: 2 towns and cities on its banks, dams, bridges and the tributaries that feed it.

104 m-98 m
Lachaat 104 m0 km
Voloshkatributary36 km
Kenatributary100 km
Moshatributary162 km
Iksatributary175 km
Nizhnyaya Telzatributary256 km
Verkhnyaya Telzatributary258 km
Nyulnyugatributary315 km
Kodinatributary322 km
Onega Bayat -98 m416 km
0100200300416 km
  1. 0 kmLachaat 104 m
  2. 2 kmLacha300 km²
  3. 6 kmKargopol’10,966 people
  4. 25 kmPorog Ol'khovets
  5. 36 kmVoloshkatributary
  6. 57 kmChucheksatributary
  7. 57 kmLeybushatributary
  8. 100 kmKenatributary
  9. 162 kmMoshatributary
  10. 175 kmIksatributary
  11. 256 kmNizhnyaya Telzatributary
  12. 258 kmVerkhnyaya Telzatributary
  13. 271 kmShomokshatributary
  14. 294 kmNizhnyaya Rochevatributary
  15. 315 kmNyulnyugatributary
  16. 322 kmKodinatributary
  17. 325 kmMudyugatributary
  18. 362 kmKozhatributary
  19. 394 kmOnega22,693 people
  20. 401 kmAndatributary
  21. 401 kmVongudatributary
  22. 416 kmOnega Bayat -98 m

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

River in Arkhangelsk Oblast, Russia

At the mouth it carries 505 m³/s on average: an Olympic pool every 5.0 seconds. It drops from 104 m to -98 m, 0.5 m per kilometre on average. Its basin covers 56,900 km², about the size of TG. 152,000 people live in it. Highest water, with the snowmelt: from May to June; 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

  • OnegaLargest city on its banks · 22,693 people
  • Talagi Airport (ARH)Nearest airport with scheduled flights, 148 km from the city
  • On the water9 ferry piers, marinas, boat rentals and boat ramps along the river (OpenStreetMap)
  • From June to AugustThe best months to visit

Onega, month by month

Highest water: from May to June

Lowest water: from December to March. Freezing months (average below −4 °C): from November to March. Melting snow makes up much of its water. Best months to visit: from June to August.

260
-13°35 mmJan
260
-12°27 mmFeb
260
-6°30 mmMar
910
1°36 mmApr
1,300
8°47 mmMay
1,200
14°60 mmJun
830
16°64 mmJul
650
14°76 mmAug
730
8°66 mmSep
860
2°68 mmOct
640
-4°54 mmNov
450
-9°46 mmDec
Water (estimated flow)Air (average) Rain (mm)Best months

From about 260 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

Onega: the basin in numbers

63,771 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.
  • 152,000people live in the basin
  • 2/km²people per km²
  • 128maverage altitude of the basin
  • 622mmof rain a year (basin average)
  • 1.5°Caverage air temperature
  • 7%protected areas
  • 2.2%covered by lakes

What covers the basin

  • 81% Forest
  • 2% Cropland
  • 3% Pasture

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

Onega: what you find on the way

  • 1Waterfalls
  • 9Ferry piers

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

Cross-checked with our atlases

Onega 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.

  • 1waterfall on the riverCascadyas
  • 1lake on its wayLakeyas

Waterfalls (1)

On the river, by Cascadyas

  1. Porog Ol'khovetskm 25

Cascadyas is coming soonOpen Cascadyas ↗

Lakes and reservoirs (1)

Lakes it flows through, by Lakeyas

  1. Lachakm 2 · 5 m deep300km²

Lakeyas is coming soonOpen Lakeyas ↗

From space

The source and the mouth, seen from orbit

Onega: satellite view of the source
The source14 km across
Onega: 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

Onega in pictures

OnegaRiver 008 5561
Ludvig14 · CC BY-SA 4.0
OnegaRiver 008 5566
Ludvig14 · CC BY-SA 4.0
Onega-port
V1adis1av · CC BY-SA 4.0
Breakwater on Lake Onega
Kae · CC BY-SA 3.0

Tributaries

Where it flows, and what flows into it

Tributaries (35)

Also: Voloshka, Kodina, Kena, Kozha, Mosha, Mudyuga, Shomoksha, Vonguda, Anda, Nyulnyuga, Nizhnyaya Telza, Verkhnyaya Telza, Chucheksa, Cheshyuga, Ektysha, Nizhnyaya Rocheva, Leybusha, Udrega, Churoksa, Lizhenga, Nizhny Ig, Ochenga, Telmentsa, Pindesha

Where these numbers come from

Name, length, placesWikidata (Q78898) · 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 atlasesCascadyas, Lakeyas — 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