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Japan JapanVolcanic island

Mikura-jima

20.5 km² rising to 851 m out of the Philippine Sea.

When to go

Mikura-jima seen from space, cut out from the sea (Sentinel-2)
N 1 km

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

In numbers

20.5km²

Area

19km

Coastline

851m

Highest point

Mount Oyama

303

People

27°C

Warmest sea

August

952km

To the mainland

When to go to Mikura-jima

Best for the beach from June to October.

The sea is warmest in August (27 °C) and coolest in February (18 °C). Comfortable swimming (21 °C or more): from May to November.

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 Tokyo, Japan

Mikura-jima is an volcanic island in Japan. It covers 20.5 km², with 19 km of coastline. Its highest point, Mount Oyama, rises to 851 m. About 303 people live on it. The nearest mainland is 952 km away.

Read more on Wikipedia

Getting there

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 Mikura-jima.

  • 1lighthouses
  • 2ferry terminals
  • 4named peaksMt. Oyama, Mt. Kurosakitakao, Mt. Ichinomori and 1 more
  • 10waterfalls
  • 1restaurants, 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

Mikura-jima in our other atlases

Everything Coastya, Peakyas, Lakeyas and Cascadyas know about what lies inside Mikura-jima, each with its own numbers.

  • 1mountainPeakyas

1 mountains

on Peakyas, the mountain atlas

  1. Mount Oyama

Open Peakyas ↗

The shape of the land.

On average the island stands 398 m above the sea. 19 % of it is below 200 m.

  • 5 %0–50 m
  • 13 %50–200 m
  • 48 %200–500 m
  • 33 %500–1,000 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.

Mikura-jima21 km²
Manhattan54 km²
Santorini76 km²

5 km

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

Month by month

The weather on the island.

JanFebMarAprMayJunJulAugSepOctNovDec
Afternoon high (°C)141416182123262826242016
Night low (°C)111113161922252725221814
Sea (°C)191818192123252727252321
Rain (mm)8610416417619926321716023025313698
Wet days91015141418171618171411
Sun h/day4.74.75.25.65.84.35.87.25.34.04.14.5
Wind (km/h)333131282423222024282833

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+1.4+1.8+1.0+0.9+0.4+1.4+0.8+1.4+1.3+1.0+1.3+2.1
2021+1.4+0.7+0.4+1.2+0.6+1.8+1.0+0.6+0.9+1.5+1.0+0.7
2022+0.8+1.4+1.3+1.4+0.8+1.2+1.5+1.1+1.7+1.2+1.1+1.3
2023+1.2+1.7+1.7+1.9+1.1+1.2+1.3+1.1+1.1+1.6+1.5+1.9
2024+2.2+2.0+1.5+1.5+2.0+1.7+2.3+2.0+2.2+2.5+2.4+1.5
2025+1.7+1.1+0.6+0.9+0.5+1.3+1.9−0.3+1.2+0.4+0.2+1.8

+1 warmer than usual −1 cooler than usual

Photos

Seen by visitors.

Mikura-jima
Izawa Ryu · CC BY-SA 4.0
View of Mikurajima from aircraft
さかおり · CC BY-SA 4.0
Inane Shrine on Mikurajima Island-crop
ブルーノ・プラス · CC BY 4.0
Mikurajima view from southwest 20170930
Ka23 13 · CC BY-SA 4.0

About these numbers

Names, area, populationWikidata (Q1197235) · 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

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Same idea, other landscapes: field atlases built on open data, month by month, in seven languages.

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