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River

River Dee

110 km from source to mouth · United Kingdom.

United KingdomUnited KingdomFlows into Dee Estuary

Follow the riverMonth by month

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

In numbers

Length

110km

Average flow

30m³/s

Basin

1,817km²

Drop

160m

from 160 m to 0 m

Country

1

The journey

From source to mouth

110 km of river and 38 stops on the way: 8 towns and cities on its banks, dams, bridges and the tributaries that feed it.

160 m0 m
Ddualltat 160 m0 km
Rhaeadr Cynwyd20 km
Pont Carrog29 km
Horseshoe Falls41 km
Pontcysyllte AqueductUNESCO World Heritage51 km
River Ceiriogtributary61 km
River Clywedogtributary74 km
Wych Brooktributary78 km
Chester90,524 people93 km
Dee Estuaryat 0 m110 km
0255075110 km
  1. 0 kmDdualltat 160 m
  2. 4 kmLlyn Tegid3.9 km²
  3. 5 kmBala1,974 people
  4. 15 kmPont Cilan
  5. 20 kmRhaeadr Cynwyd
  6. 20 kmPont Dyffrdwy
  7. 29 kmPont Carrog
  8. 41 kmHorseshoe Falls
  9. 44 kmLlangollen Bridge
  10. 44 kmLlangollen3,658 people
  11. 50 kmPont Cysyllte
  12. 51 kmPontcysyllte AqueductUNESCO World Heritage
  13. 61 kmRiver Ceiriogtributary
  14. 64 kmOverton Bridge
  15. 68 kmBangor Bridge
  16. 74 kmRiver Clywedogtributary
  17. 78 kmHolt1,554 people
  18. 78 kmWych Brooktributary
  19. 79 kmFarndon Bridge
  20. 86 kmAldford Iron Bridge
  21. 92 kmBarrel Well House
  22. 92 kmChester House, garden chambers and wall
  23. 92 kmHoole1,180 people
  24. 92 kmBoundary wall to Number 17 Tower Summerhouse and boundary wall to Number 14A (Number 14A not included)
  25. 93 kmGrosvenor Rowing Club Boathouse (The East Boathouse)
  26. 93 kmGrove Cottage
  27. 93 kmQueens Park Bridge
  28. 93 kmChester90,524 people
  29. 93 kmChester Bandstand
  30. 93 kmOld Dee Bridge
  31. 93 kmHandbridge4,223 people
  32. 93 kmRetaining wall to bank of River Dee opposite County Hall (not included)
  33. 94 kmGrosvenor Bridge
  34. 94 kmChester Rail Bridge
  35. 95 km5, Sealand Road
  36. 95 kmBlacon13,495 people
  37. 104 kmJubilee Bridge
  38. 105 kmDeeside32,000 people
  39. 105 kmHawarden Bridge
  40. 110 kmDee Estuaryat 0 m

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

River in England and Wales

At the mouth it carries 30 m³/s on average: an Olympic pool every 84 seconds. It drops from 160 m to 0 m, 1.5 m per kilometre on average. Its basin covers 1,817 km², about the size of GP. 379,000 people live in it. Highest water: from November to January. Its dams hold back little of its water (9.8% of a year's flow).

Read more on Wikipedia

Where to start

  • ChesterLargest city on its banks · 90,524 people
  • Liverpool John Lennon Airport (LPL)Nearest airport with scheduled flights, 16 km from the cityCar hire at LPL airport (Liverpool)Discover Cars · Affiliate link
  • On the water14 ferry piers, marinas, boat rentals and boat ramps along the river (OpenStreetMap)
  • Kayak and canoe1 put-ins and rapids mapped (OpenStreetMap)
  • From June to SeptemberThe best months to visit

River Dee, month by month

Highest water: from November to January

Best months to visit: from June to September.

69
4°62 mmJan
50
3°47 mmFeb
40
6°52 mmMar
29
8°45 mmApr
29
11°57 mmMay
26
14°56 mmJun
25
16°58 mmJul
34
15°70 mmAug
44
13°71 mmSep
55
10°71 mmOct
73
7°80 mmNov
80
5°75 mmDec
Water (estimated flow)Air (average) Rain (mm)Best months

From about 25 m³/s in the lowest month to 80 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

River Dee: the basin in numbers

1,991 km² of land send their water to this river. This is what lives on it.

Lightly regulatedReservoirs can hold 9.8% of a year's flow.
  • 379,000people live in the basin
  • 191/km²people per km²
  • 223maverage altitude of the basin
  • 976mmof rain a year (basin average)
  • 8.3°Caverage air temperature
  • 34%protected areas
  • 0.7%covered by lakes
  • 0.2km³held in reservoirs

What covers the basin

  • 5% Forest
  • 10% Cropland
  • 43% Pasture
  • 9% 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

River Dee: what you find on the way

  • 2Dams
  • 29WeirsHorseshoe Falls, Llangollen Town Weir and 27 more
  • 31LocksShropshire Union Canal, Chemistry Lock, Bridge Lock and 28 more
  • 5Waterfalls
  • 1RapidsBala Mill Falls
  • 9Boat rampsBala Lake slipway and 8 more
  • 2Ferry piersThe Meadows, Sandy Lane
  • 2MarinasLlangollen Moorings, Chirk Marina
  • 1Boat rentalsCrest Narrowboats

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

Cross-checked with our atlases

River Dee 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.

  • 2waterfalls on the riverCascadyas
  • 1lake on its wayLakeyas
  • 1beach at the mouth or on the banksCoastya
  • 172mountains at the sourcePeakyas
  • 1island off the mouthIslandyas

Waterfalls (2)

On the river, by Cascadyas

  1. Rhaeadr Cynwydkm 22
  2. Horseshoe Fallskm 43

Cascadyas is coming soonOpen Cascadyas ↗

Lakes and reservoirs (1)

Lakes it flows through, by Lakeyas

  1. Llyn Tegidkm 5 · 42 m deep3.9km²

Lakeyas is coming soonOpen Lakeyas ↗

Beaches (1)

At the mouth (25 km) and on the banks, by Coastya

  1. Thurstaston Beach11 km away17.0°C

Open Coastya ↗

Mountains at the source (172)

Within 15 km of the source, by Peakyas

  1. Snowdonia9.6 km away1,085m
  2. Aran Fawddwy7.0 km away · prominence 670 m905m
  3. Aran Benllyn6.2 km away · prominence 50 m885m
  4. Arenig Fawr9.5 km away · prominence 479 m854m
  5. Erw y Ddafad-ddu6.5 km away · prominence 38 m872m
  6. Glasgwm8.2 km away · prominence 215 m779m
  7. Arenig Fawr South Top9.2 km away836m
  8. Rhobell Fawr3.3 km away · prominence 309 m734m

164 more on PeakyasOpen Peakyas ↗

Islands off the mouth (1)

Within 30 km of the mouth, by Islandyas

  1. Hilbre Island17 km away0.0km²

Islandyas is coming soonOpen Islandyas ↗

From space

The source and the mouth, seen from orbit

River Dee: satellite view of the source
The source14 km across
River Dee: 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.

Tributaries

Where it flows, and what flows into it

Tributaries (6)

Also: River Ceiriog, Afon Tryweryn, River Clywedog, River Lliw, Wych Brook, River Eitha

Where these numbers come from

Name, length, placesWikidata (Q1043657) · 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, Coastya, Peakyas, Islandyas — 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