River
Opava
111 km from source to mouth · Czechia and Poland.
Czechia and PolandFlows into Oder10th longest in Czechia
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.
- 0 kmStřední Opavaat 477 m
- 1 kmVrbno pod Pradědem4,627 people
- 23 kmOld bridge over the Opava in Nové Heřminovy
- 29 kmZátor1,169 people
- 34 kmBridge 4587-1 over the Opava in Brantice
- 34 kmBrantice1,215 people
- 42 kmBridge of Sokolovská street over the Opava in Krnov
- 42 kmKrnov22,518 people
- 42 kmČerná Opavatributary
- 43 kmBridge of Opavská street over the Opava in Krnov
- 44 kmRailway bridge over the Opava near the Krnov-Cvilín station
- 50 kmOpavicetributary
- 52 kmBranice2,300 people
- 57 kmBoboluszki - Skrochovice bridge
- 60 kmHolasovice1,366 people
- 61 kmČižinatributary
- 64 kmMost Držkovice - Dzierżkowice
- 66 kmRoad bridge Vávrovice - Wiechowice
- 70 kmHeraltický potoktributary
- 73 kmOpava55,109 people
- 73 kmFootbridge over the Opava in Opava
- 73 kmBridge of Ratibořská street over the Opava
- 77 kmRailway bridge in Malé Hoštice
- 78 kmMoravicetributary
- 80 kmVelké Hoštice1,675 people
- 84 kmŠtítina1,173 people
- 84 kmBridge Kravaře - Dvořisko
- 84 kmKravaře6,787 people
- 88 kmMokré Lazce1,144 people
- 93 kmHáj ve Slezsku3,322 people
- 93 kmJezero u Dolního Benešova0.9 km²
- 94 kmDolní Benešov4,314 people
- 97 kmKozmice1,808 people
- 98 kmBridge over the Opava in Jilešovice
- 100 kmHlučín13,245 people
- 101 kmDěhylov weir
- 101 kmHlučínské jezero1.3 km²
- 110 kmBridge of D1 highway over the Opava and railway line
- 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.
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.
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.
- 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
- 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
- Jezero u Dolního Benešovakm 800.9km²
- 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
- Praděd12 km away · prominence 983 m1,491m
- Vysoká hole12 km away · prominence 150 m1,465m
- Petr's boulders12 km away1,447m
- Malý Děd12 km away1,369m
- Velký Máj15 km away1,385m
- Velký Děd12 km away1,408m
- Kamzičník14 km away1,420m
- Medvědí vrch6.1 km away · prominence 286 m1,216m
58 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
Opava in pictures




Tributaries
Where it flows, and what flows into it
It flows into
OderTributaries (10)
Also: Moravice, Bílá Opava, Opavice, Černá Opava, Střední Opava, Čižina, Vařešinka, Heraltický potok, Jasénka, Plesenský potok
Nearby
Rivers nearby
Where these numbers come from
| Name, length, places | Wikidata (Q577026) · 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
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.