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River

Opava

111 km from source to mouth · Czechia and Poland.

CzechiaPolandCzechia and PolandFlows into Oder10th longest in Czechia

Follow the riverMonth by month

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

In numbers

Length

111km

Average flow

16m³/s

Basin

2,089km²

Drop

271m

from 477 m to 206 m

Countries

2

The journey

From source to mouth

111 km of river and 37 stops on the way: 15 towns and cities on its banks, dams, bridges and the tributaries that feed it.

477 m206 m
Střední Opavaat 477 m0 km
Old bridge over the Opava in Nové Heřminovy23 km
Krnov22,518 people42 km
Černá Opavatributary42 km
Boboluszki - Skrochovice bridge57 km
Čižinatributary61 km
Opava55,109 people73 km
Moravicetributary78 km
Mokré Lazce1,144 people88 km
Jezero u Dolního Benešova0.9 km²93 km
Oderat 206 m111 km
0255075111 km
  1. 0 kmStřední Opavaat 477 m
  2. 1 kmVrbno pod Pradědem4,627 people
  3. 23 kmOld bridge over the Opava in Nové Heřminovy
  4. 29 kmZátor1,169 people
  5. 34 kmBridge 4587-1 over the Opava in Brantice
  6. 34 kmBrantice1,215 people
  7. 42 kmBridge of Sokolovská street over the Opava in Krnov
  8. 42 kmKrnov22,518 people
  9. 42 kmČerná Opavatributary
  10. 43 kmBridge of Opavská street over the Opava in Krnov
  11. 44 kmRailway bridge over the Opava near the Krnov-Cvilín station
  12. 50 kmOpavicetributary
  13. 52 kmBranice2,300 people
  14. 57 kmBoboluszki - Skrochovice bridge
  15. 60 kmHolasovice1,366 people
  16. 61 kmČižinatributary
  17. 64 kmMost Držkovice - Dzierżkowice
  18. 66 kmRoad bridge Vávrovice - Wiechowice
  19. 70 kmHeraltický potoktributary
  20. 73 kmOpava55,109 people
  21. 73 kmFootbridge over the Opava in Opava
  22. 73 kmBridge of Ratibořská street over the Opava
  23. 77 kmRailway bridge in Malé Hoštice
  24. 78 kmMoravicetributary
  25. 80 kmVelké Hoštice1,675 people
  26. 84 kmŠtítina1,173 people
  27. 84 kmBridge Kravaře - Dvořisko
  28. 84 kmKravaře6,787 people
  29. 88 kmMokré Lazce1,144 people
  30. 93 kmHáj ve Slezsku3,322 people
  31. 93 kmJezero u Dolního Benešova0.9 km²
  32. 94 kmDolní Benešov4,314 people
  33. 97 kmKozmice1,808 people
  34. 98 kmBridge over the Opava in Jilešovice
  35. 100 kmHlučín13,245 people
  36. 101 kmDěhylov weir
  37. 101 kmHlučínské jezero1.3 km²
  38. 110 kmBridge of D1 highway over the Opava and railway line
  39. 111 kmOderat 206 m

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

River in Czechia and Poland

At the mouth it carries 16 m³/s on average: an Olympic pool every 160 seconds. It drops from 477 m to 206 m, 2.4 m per kilometre on average. Its basin covers 2,089 km², about the size of MU. 260,000 people live in it. Highest water: March; lowest: from December to February. It is heavily dammed: reservoirs can hold 51% of a year's flow.

Read more on Wikipedia

Where to start

  • OpavaLargest city on its banks · 55,109 people
  • Leoš Janáček Airport Ostrava (OSR)Nearest airport with scheduled flights, 31 km from the cityCar hire at OSR airport (Mošnov)Discover Cars · Affiliate link
  • On the water1 ferry piers, marinas, boat rentals and boat ramps along the river (OpenStreetMap)
  • From June to SeptemberThe best months to visit

Opava, month by month

Highest water: March

Lowest water: from December to February. Best months to visit: from June to September.

10
-3°29 mmJan
9.4
-1°30 mmFeb
32
3°33 mmMar
26
8°48 mmApr
25
13°81 mmMay
25
16°97 mmJun
25
18°92 mmJul
25
17°88 mmAug
21
14°58 mmSep
18
9°42 mmOct
19
4°45 mmNov
13
0°37 mmDec
Water (estimated flow)Air (average) Rain (mm)Best months

From about 9.4 m³/s in the lowest month to 32 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

Opava: the basin in numbers

2,088 km² of land send their water to this river. This is what lives on it.

DammedReservoirs can hold 51% of a year's flow: much of the river is a chain of lakes.
  • 260,000people live in the basin
  • 125/km²people per km²
  • 518maverage altitude of the basin
  • 717mmof rain a year (basin average)
  • 6.7°Caverage air temperature
  • 15%protected areas
  • 0.6%covered by lakes
  • 0.3km³held in reservoirs

What covers the basin

  • 44% Forest
  • 41% Cropland
  • 9% 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

Opava: what you find on the way

  • 2Dams
  • 67WeirsKomárovský splav, jez Děhylov - 12,1 km, Lhotecký jez and 64 more
  • 1Boat ramps

From OpenStreetMap, within 1.4 km of the river. Not mapped is not the same as not there.

Cross-checked with our atlases

Opava 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
  • 66mountains at the sourcePeakyas

Lakes and reservoirs (2)

Lakes it flows through, by Lakeyas

  1. Jezero u Dolního Benešovakm 800.9km²
  2. Hlučínské jezerokm 87 · 4 m deep1.3km²

Lakeyas is coming soonOpen Lakeyas ↗

Mountains at the source (66)

Within 15 km of the source, by Peakyas

  1. Praděd12 km away · prominence 983 m1,491m
  2. Vysoká hole12 km away · prominence 150 m1,465m
  3. Petr's boulders12 km away1,447m
  4. Malý Děd12 km away1,369m
  5. Velký Máj15 km away1,385m
  6. Velký Děd12 km away1,408m
  7. Kamzičník14 km away1,420m
  8. Medvědí vrch6.1 km away · prominence 286 m1,216m

58 more on PeakyasOpen Peakyas ↗

From space

The source and the mouth, seen from orbit

Opava: satellite view of the source
The source14 km across
Opava: satellite view of the mouth
The mouth10 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

Opava in pictures

Tributaries

Where it flows, and what flows into it

Tributaries (10)

Also: Moravice, Bílá Opava, Opavice, Černá Opava, Střední Opava, Čižina, Vařešinka, Heraltický potok, Jasénka, Plesenský potok

Where these numbers come from

Name, length, placesWikidata (Q577026) · 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