River
Słupia
139 km from source to mouth · Poland.
PolandFlows into Baltic Sea
In numbers
Length
139km
Average flow
16m³/s
Basin
1,620km²
Drop
98m
from 97 m to -1 m
Country
1
The journey
From source to mouth
139 km of river and 9 stops on the way: 5 towns and cities on its banks, dams, bridges and the tributaries that feed it.
- 0 kmSourceat 97 m
- 0 kmBytów16,724 people
- 3 kmJeleń0.7 km²
- 18 kmJezioro Głębokie0.9 km²
- 59 kmKrzynia0.5 km²
- 66 kmDębnica Kaszubska3,220 people
- 71 kmSkotawatributary
- 92 kmKobylnica4,500 people
- 97 kmSłupsk98,608 people
- 137 kmUstka16,250 people
- 139 kmBaltic Seaat -1 m
Water level along the river (RiverATLAS; the height is exaggerated). Towns: GeoNames and Wikidata; bridges, dams and tributaries: Wikidata.
River in Poland
At the mouth it carries 16 m³/s on average: an Olympic pool every 161 seconds. It drops from 97 m to -1 m, 0.7 m per kilometre on average. Its basin covers 1,620 km², about the size of GP. 148,000 people live in it. Highest water: March; lowest: from December to February and June. No large dam holds it back: it is one of the world's free-flowing rivers.
Where to start
- SłupskLargest city on its banks · 98,608 people
- Gdańsk Lech Wałęsa Airport (GDN)Nearest airport with scheduled flights, 94 km from the cityCar hire at GDN airport (Gdańsk)Discover Cars · Affiliate link↗
- On the water18 ferry piers, marinas, boat rentals and boat ramps along the river (OpenStreetMap)
- From May to SeptemberThe best months to visit
Słupia, month by month
Highest water: March
Lowest water: from December to February and June. Best months to visit: from May to September.
From about 12 m³/s in the lowest month to 41 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
Słupia: the basin in numbers
1,448 km² of land send their water to this river. This is what lives on it.
- 148,000people live in the basin
- 102/km²people per km²
- 102maverage altitude of the basin
- 673mmof rain a year (basin average)
- 7.5°Caverage air temperature
- 24%protected areas
- 0.7%covered by lakes
What covers the basin
- 39% Forest
- 37% Cropland
- 9% Pasture
- 7% 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
Słupia: what you find on the way
- 10WeirsŚluzy Łososiowe and 9 more
- 1Waterfalls
- 8Boat ramps
- 1Ferry piers
- 8MarinasPrzystań kajakowa, Prywatna przystań kajakowa, Sołecka przystań kajakowa and 5 more
- 2River beachesPlaża Strzeżona, Plaża zachodnia
From OpenStreetMap, within 1.3 km of the river. Not mapped is not the same as not there.
Cross-checked with our atlases
Słupia 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.
3lakes on its wayLakeyas
3beaches at the mouth and on the banksCoastya
9mountains at the sourcePeakyas
Lakes and reservoirs (3)
Lakes it flows through, by Lakeyas
- Jeleńkm 20.7km²
- Jezioro Głębokiekm 110.9km²
- Krzyniakm 380.5km²
Lakeyas is coming soonOpen Lakeyas ↗
Beaches (3)
At the mouth (25 km) and on the banks, by Coastya
- Jarosławiec Plaża21 km away18.5°C
- Plaża Dębina11 km away18.5°C
- Plaża Rowy15 km away18.5°C
Mountains at the source (9)
Within 15 km of the source, by Peakyas
- Wzgórze nad Mojuszewską Hutą2.9 km away
- Wzgórze II nad Mojuszewską Hutą3.4 km away
- Wzgórze nad Mojuszem4.5 km away
- Wzgórze nad Szklaną1.9 km away
- Wzgorze nad Tuchlinkiem2.3 km away
- Wysoczyzna Czapelska14 km away
- Gora Ostrzyce15 km away
- Gora Kamyszki14 km away
1 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
Słupia in pictures
Tributaries
Where it flows, and what flows into it
Tributaries (3)
Also: Bytowa, Skotawa, Kamienica
Nearby
Rivers nearby
Where these numbers come from
| Name, length, places | Wikidata (Q1515455) · CC0 |
|---|---|
| Course, profile, basin | RiverATLAS v1.0 (HydroATLAS, Linke et al. 2019) · CC BY 4.0 — followed along the river network from the point 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, Coastya, 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.
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Every waterfall: height, flow month by month and when it roars.Coming soonVisit 
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Every island from the sea up: size, sea temperature, ferries and 3D.Coming soonVisit 
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Every canyon cut to scale: depth to the floor, rim and floor temperatures, trails and viewpoints.Coming soonVisit