River
Kokemäenjoki
121 km from source to mouth · Finland.
FinlandFlows into Bothnian Sea6th longest in Finland
In numbers
Length
121km
Average flow
230m³/s
Basin
27,100km²
Drop
34m
from 39 m to 5 m
Country
1
The journey
From source to mouth
121 km of river and 21 stops on the way: 11 towns and cities on its banks, dams, bridges and the tributaries that feed it.
- 0 kmSourceat 39 m
- 18 kmRiippilänjärvi0.7 km²
- 28 kmSastamala24,495 people
- 28 kmVammala16,635 people
- 31 kmRautavesi86 km²
- 36 kmKiikka1,252 people
- 41 kmÄetsä4,929 people
- 50 kmSammunjokitributary
- 51 kmHuittinen10,703 people
- 53 kmLoimijokitributary
- 59 kmPuurijärvi3.7 km²
- 67 kmLinnanluoto
- 70 kmKokemäki6,662 people
- 83 kmHarjavalta8,003 people
- 86 kmSatalinna hospital
- 94 kmNakkila4,966 people
- 94 kmNakkila parish village4,262 people
- 104 kmUlvila12,345 people
- 109 kmHarjunpäänjokitributary
- 112 kmPori83,157 people
- 112 kmCentral Pori Church
- 113 kmPormestarinsilta
- 121 kmBothnian Seaat 5 m
Water level along the river (RiverATLAS; the height is exaggerated). Towns: GeoNames and Wikidata; bridges, dams and tributaries: Wikidata.
River of Finland
At the mouth it carries 231 m³/s on average: an Olympic pool every 11 seconds. It drops from 39 m to 5 m, 0.3 m per kilometre on average. Its basin covers 27,100 km², about the size of HT. 706,000 people live in it. Highest water, with the snowmelt: from April to May; lowest: from December to March. Its dams hold back little of its water (9.9% of a year's flow).
Where to start
- PoriLargest city on its banks · 83,157 people
- Pori Airport (POR)Nearest airport with scheduled flights, 2 km from the cityCar hire at TMP airport (Tampere / Pirkkala)Discover Cars · Affiliate link↗
- On the water15 ferry piers, marinas, boat rentals and boat ramps along the river (OpenStreetMap)
- Kayak and canoe5 put-ins and rapids mapped (OpenStreetMap)
- From June to AugustThe best months to visit
Kokemäenjoki, month by month
Highest water: from April to May
Lowest water: from December to March. Freezing months (average below −4 °C): from December to February. Melting snow makes up much of its water. Best months to visit: from June to August.
From about 180 m³/s in the lowest month to 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
Kokemäenjoki: the basin in numbers
24,568 km² of land send their water to this river. This is what lives on it.
- 706,000people live in the basin
- 32/km²people per km²
- 114maverage altitude of the basin
- 608mmof rain a year (basin average)
- 3.4°Caverage air temperature
- 1%protected areas
- 10.8%covered by lakes
- 0.7km³held in reservoirs
What covers the basin
- 81% Forest
- 14% Cropland
- 2% 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
Kokemäenjoki: what you find on the way
- 2Weirs
- 2RapidsTöörinkoski, Talankoski
- 3Canoe put-ins
- 12Boat rampsLukkisalmentien veneenlaskupaikka and 11 more
- 1Ferry piersJokisenjärven laivalaituri
- 1MarinasSiuro Marina
- 10River beachesSiuron uimaranta, Ellivuoren uimaranta, Karkun uimaranta and 7 more
From OpenStreetMap, within 2.0 km of the river. Not mapped is not the same as not there.
Cross-checked with our atlases
Kokemäenjoki 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
81beaches at the mouth and on the banksCoastya
6islands off the mouthIslandyas
Lakes and reservoirs (3)
Lakes it flows through, by Lakeyas
- Riippilänjärvikm 190.7km²
- Rautavesikm 3486km²
- Puurijärvikm 653.7km²
Lakeyas is coming soonOpen Lakeyas ↗
Beaches (81)
At the mouth (25 km) and on the banks, by Coastya
- Loimaranta19 km away16.8°C
- Riitsaranlahti6.8 km away · cove16.7°C
- Susisanta12 km away16.8°C
- Santakari12 km away16.8°C
- Saatinsanta9.2 km away16.8°C
- Maakari12 km away16.8°C
- Kallensäikkä12 km away16.8°C
- Yyterinsannat9.6 km away16.7°C
73 more on CoastyaOpen Coastya ↗
Islands off the mouth (6)
Within 30 km of the mouth, by Islandyas
- Reposaari15 km away4.1km²
- Säppi20 km away1.5km²
- Kallo14 km away0.1km²
- Munakari10 km away0.0km²
- Lampaluoto14 km away6.7km²
- Anttoora20 km away4.0km²
Islandyas is coming soonOpen Islandyas ↗
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
Kokemäenjoki in pictures
Tributaries
Where it flows, and what flows into it
Tributaries (4)
Also: Loimijoki, Harjunpäänjoki, Sammunjoki, Sonnilanjoki
Nearby
Rivers nearby
Finland70 km17 m³/s128 km awayDalälven
Sweden220 km350 m³/s251 km awayLjunganSweden350 km140 m³/s242 km awayIndalsälvenSweden420 km460 m³/s249 km awayUme älvSweden467 km450 m³/s256 km awayKeila River
Estonia112 km8.6 m³/s277 km awayVindel RiverSweden450 km250 m³/s278 km awayKymi RiverFinland204 km300 m³/s304 km awayWhere these numbers come from
| Name, length, places | Wikidata (Q1329599) · 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, 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?
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