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River

Yoshino River

236 km from source to mouth · Japan.

JapanJapanFlows into Kii Channel6th longest in Japan

Follow the riverMonth by month

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

In numbers

Length

236km

Average flow

140m³/s

Basin

3,750km²

Drop

600m

from 597 m to -3 m

Country

1

The journey

From source to mouth

236 km of river and 16 stops on the way: 11 towns and cities on its banks, dams, bridges and the tributaries that feed it.

597 m-3 m
Mount Kamegamoriat 597 m0 km
Sugi3,252 people62 km
Oboke Bridge94 km
Ōboke and Koboke99 km
Ikedachō23,605 people127 km
Hara13,622 people144 km
Mima28,055 people173 km
Awa34,713 people193 km
Kii Channelat -3 m236 km
050100150200236 km
  1. 0 kmMount Kamegamoriat 597 m
  2. 62 kmSugi3,252 people
  3. 94 kmOboke Bridge
  4. 99 kmŌboke and Koboke
  5. 127 kmIkedachō23,605 people
  6. 144 kmHara13,622 people
  7. 162 kmSadamitsu7,715 people
  8. 173 kmMima28,055 people
  9. 175 kmWakimachi17,659 people
  10. 193 kmAwa34,713 people
  11. 205 kmKamojimachō-jōgejima24,374 people
  12. 214 kmShichijō11,384 people
  13. 226 kmOkuno13,042 people
  14. 232 kmYoshinogawa bridge
  15. 236 kmYoshinogawa Sunrise Bridge
  16. 236 kmAwa Shirasagi Ohashi
  17. 236 kmTokushima254,510 people
  18. 236 kmKii Channelat -3 m

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

River in Kochi and Tokushima prefectures, Japan

At the mouth it carries 136 m³/s on average: an Olympic pool every 18 seconds. It drops from 597 m to -3 m, 2.5 m per kilometre on average. Its basin covers 3,750 km², about the size of CV. 443,000 people live in it. Highest water: from June to July and September; lowest: from December to February. Dams and reservoirs hold back a large share of its water (11% of a year's flow).

Read more on Wikipedia

Where to start

Yoshino River, month by month

Highest water: from June to July and September

Lowest water: from December to February. Best months to visit: from April to May and from October to November.

58
4°49 mmJan
72
5°66 mmFeb
120
8°110 mmMar
160
13°148 mmApr
180
17°160 mmMay
250
21°237 mmJun
250
25°220 mmJul
200
26°171 mmAug
250
23°238 mmSep
200
17°136 mmOct
140
12°82 mmNov
73
7°45 mmDec
Water (estimated flow)Air (average) Rain (mm)Best months

From about 58 m³/s in the lowest month to 250 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

Yoshino River: the basin in numbers

3,372 km² of land send their water to this river. This is what lives on it.

Heavily regulatedReservoirs can hold 11% of a year's flow: dams shape its seasons.
  • 443,000people live in the basin
  • 134/km²people per km²
  • 636maverage altitude of the basin
  • 1,978mmof rain a year (basin average)
  • 12.4°Caverage air temperature
  • 11%protected areas
  • 0.3%covered by lakes
  • 0.5km³held in reservoirs

What covers the basin

  • 89% Forest
  • 4% Cropland
  • 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

Yoshino River: what you find on the way

  • 66Dams
  • 65Weirs
  • 2Locks
  • 1Waterfalls

From OpenStreetMap, within 1.5 km of the river. Not mapped is not the same as not there.

Cross-checked with our atlases

Yoshino River 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.

  • 16mountains at the sourcePeakyas
  • 8islands off the mouthIslandyas

Mountains at the source (16)

Within 15 km of the source, by Peakyas

  1. Mount Kamegamori14 km away1,897m
  2. Mount Sasa12 km away1,860m
  3. Mount Tsutsujo14 km away1,859m
  4. Mount Chichi12 km away1,855m
  5. Mount Nishikuromori12 km away1,861m
  6. Mount Tebako13 km away1,806m
  7. Mount Kanpū11 km away1,763m
  8. Mount Iwaguro15 km away1,746m

8 more on PeakyasOpen Peakyas ↗

Islands off the mouth (8)

Within 30 km of the mouth, by Islandyas

  1. Ōge Island15 km away7.3km²
  2. Nushima26 km away2.7km²
  3. Shimada Island16 km away5.7km²
  4. Takashima13 km away2.6km²
  5. Tobishima18 km away
  6. Kokatsu Island28 km away
  7. Bentenjima26 km away
  8. Benten Island24 km away

Islandyas is coming soonOpen Islandyas ↗

From space

The source and the mouth, seen from orbit

Yoshino River: satellite view of the source
The source14 km across
Yoshino River: 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

Yoshino River in pictures

NabegawaKomon
Shugyoso · CC0
Japan National Route 192 and Yoshinogawa River
Twilight2640 · CC BY-SA 4.0
Kawashima bridge built over Yoshinogawa river
Twilight2640 · CC BY-SA 4.0
Nabegawa
Shugyoso · CC0

Tributaries

Where it flows, and what flows into it

Tributaries (4)

Also: Dōzan River, Egawa River, Iyagawa River, Akui River

Where these numbers come from

Name, length, placesWikidata (Q979774) · CC0
Course, profile, basinRiverATLAS v1.0 (HydroATLAS, Linke et al. 2019) · CC BY 4.0 — followed along the river network from the point 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 atlasesPeakyas, 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