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Japan JapanJapanese archipelagoVolcanic island

Rishiri Island

182 km² rising to 1,721 m out of the Sea of Japan.

When to go

Rishiri Island seen from space, cut out from the sea (Sentinel-2)
Rishiri TownOshidomari
N 2 km

Satellite: Sentinel-2 cloudless 2016 by EOX (CC BY 4.0). Outline and points © OpenStreetMap contributors / Natural Earth. North up.

In numbers

182km²

Area

78km

Coastline

1,721m

Highest point

Mount Rishiri

5,593

People

20°C

Warmest sea

August

261km

To the mainland

When to go to Rishiri Island

Best for the beach in August.

The sea is warmest in August (20 °C) and coolest in February (4 °C). The water never reaches 21 °C: bring a wetsuit.

Sea temperature (the water level) Air: night low to afternoon high Wet days Best months

Averages 1991–2020. Sea: NOAA OISST, the water within 35 km of the coast. Air, rain and sun: NASA POWER. Best months weigh warm afternoons (23–30 °C), sea of 24 °C or more and few wet days.

Island in Hokkaido, Japan

Rishiri Island is an volcanic island in Japan. It belongs to Japanese archipelago. It covers 182 km², with 78 km of coastline. Its highest point, Mount Rishiri, rises to 1,721 m. About 5,593 people live on it. The nearest mainland is 261 km away.

Read more on Wikipedia

Getting there

  • Rishiri Airport (RIS)airport on the island, with scheduled flightsCar hire at WKJ airport (Wakkanai)Discover Cars · Affiliate link
  • FerriesRishiri Island (Oshido Mari) - Rebun Island (Kafuka), Wakkanai - Rishiri Island (Oshido Mari), Rishiri Island (Kutsugata) - Rebun Island (Kafuka)
  • 261 km from the mainlanddistance to the nearest continental coast
  • Augustbest months to go (from 30 years of averages)

Plan the trip

Ferries, stays and things to do

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.

On the island

What you find on Rishiri Island.

  • 13viewpointsCape Peshi Coast, Cape Peshi Observation Point, Mt. Rishiri 2nd viewpoint and 10 more
  • 4lighthousesCape Kutsugata Lighthouse, Oshidomari Lighthouse and 2 more
  • 2ferry terminalsKutsugata Ferry Terminal, Oshidomari Ferry Terminal
  • 12named peaksMt. Rishiri South Peak, Mt. Sancho, Mt. Pon and 9 more
  • 1volcanoesMount Rishiri
  • 1waymarked walking routes
  • 4campsitesFamily Camping YU-NI and 3 more
  • 10hotels, guesthouses and apartments
  • 15restaurants, cafés and bars

Counted in OpenStreetMap, the map anyone can edit, inside the island's outline. A low number may only mean nobody has mapped it yet.

Cross-checked with our atlases

Rishiri Island in our other atlases

Everything Coastya, Peakyas, Lakeyas and Cascadyas know about what lies inside Rishiri Island, each with its own numbers.

  • 4mountainsPeakyas

4 mountains

on Peakyas, the mountain atlas

  1. Mount Rishiriprominence 1,721 m1,721m
  2. Pon Yama
  3. Senhōshi-pon Yama
  4. Mount Pon

Open Peakyas ↗

The shape of the land.

On average the island stands 279 m above the sea. 54 % of it is below 200 m.

  • 18 %0–50 m
  • 36 %50–200 m
  • 29 %200–500 m
  • 14 %500–1,000 m
  • 4 %1,000–2,000 m

Share of the island's area in each altitude band, from the Copernicus DEM (30 m, read at 30–240 m on large islands).

Size, for real

Next to islands you may know.

Rishiri Island182 km²
Malta247 km²
Madeira Island742 km²

20 km

All outlines drawn to the same scale (Natural Earth and OpenStreetMap).

Towns on the island

  • Rishiri Town2,684 people
  • Oshidomari2,458 people

Month by month

The weather on the island.

JanFebMarAprMayJunJulAugSepOctNovDec
Afternoon high (°C)-1-12610151922201471
Night low (°C)-4-4-13712161917114-2
Sea (°C)545691217202016118
Rain (mm)978071587378102131123118123126
Wet days241915111111131315161924
Sun h/day1.52.95.26.35.74.64.55.16.24.72.11.0
Wind (km/h)272726232017161721262930

Averages 1991–2020 for the ~55 km NASA POWER cell over the island; the sea from NOAA OISST.

Recent years

Warmer and cooler years at sea.

Each month's sea temperature compared with its 1991–2020 average, in degrees.

JanFebMarAprMayJunJulAugSepOctNovDec
2020+0.6−0.5+0.6+0.8+0.6+0.4+1.1−0.3+0.5+2.3+1.6+1.7
2021−0.1−0.4−0.1+0.6+0.6−0.2+1.7+0.6+0.5+1.1+1.5+2.6
2022+1.5−0.5±0.0+0.8+0.5+0.9+1.4+1.3+0.5+1.5+1.5+2.0
2023+1.8+1.3+0.7+1.3+1.1+2.0+2.2+1.7+2.6+2.5+2.9+2.6
2024+2.6+1.8−0.2+0.4−0.4±0.0−0.2−0.4+0.1+0.2+0.5+1.2
2025+1.2+2.3+1.6+1.8+2.0+1.2+2.7+3.3+2.1+1.8−0.8+0.6

+1 warmer than usual −1 cooler than usual

Photos

Seen by visitors.

Mt Rishiri
Japanexperterna.se · CC BY-SA 3.0
Minois dryas on Rishiri Island1
Prosperosity · CC BY-SA 3.0
Rishiri Island 20140814-2
Suicasmo · CC BY-SA 4.0
Rishiri Island 20140814-3
Suicasmo · CC BY-SA 4.0

About these numbers

Names, area, populationWikidata (Q495476) · CC0
Outline© OpenStreetMap contributors · ODbL
Sea temperatureNOAA OISST v2.1 · 1991–2020
ClimateNASA POWER · 1991–2020
Relief, 3D modelCopernicus DEM GLO-30 · © DLR e.V., © Airbus Defence and Space GmbH, Copernicus/ESA
Beaches, ports, lighthouses, trails© OpenStreetMap contributors · ODbL
TownsGeoNames · CC BY 4.0
ImagesEOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons
Beaches, mountains, lakes and waterfallsPeakyas — Wikidata · CC0; © OpenStreetMap contributors · ODbL; GeoNames · CC BY 4.0

Every figure is an average, an estimate or a count from a public dataset. Licences and methods: data sources.

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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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.You are here
riversRiveryasEvery river from source to sea: the journey, the flow and the basin in numbers.Visit canyonsCanyonyasEvery canyon cut to scale: depth to the floor, rim and floor temperatures, trails and viewpoints.Visit