Japan
Satellite: Sentinel-2 cloudless 2016 by EOX (CC BY 4.0). Outline and points © OpenStreetMap contributors / Natural Earth. North up.
In numbers
69.4km²
Area
57km
Coastline
854m
Highest point
Mount Nishi
7,042
People
28°C
Warmest sea
August
994km
To the mainland
When to go to Hachijō-jima
Best for the beach from June to October.
The sea is warmest in August (28 °C) and coolest in February (19 °C). Comfortable swimming (21 °C or more): from May to December.
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
Hachijō-jima is an volcanic island in Japan. It covers 69.4 km², with 57 km of coastline. Its highest point, Mount Nishi, rises to 854 m. About 7,042 people live on it. The nearest mainland is 994 km away.
Getting there
- Hachijojima Airport (HAC)airport on the island, with scheduled flightsCar hire in ShizuokaDiscover Cars · Affiliate link↗
- FerriesHachijo-Aogashima, Tokyo-Miyake-Mikura-Hachijo
- 994 km from the mainlanddistance to the nearest continental coast
- From June to Octoberbest 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 Hachijō-jima.
- 4beaches
- 5viewpointsAsobihira-makino Watching House and 4 more
- 2lighthouses
- 2ferry terminalsSokodo Port
- 6named peaksMt. Nishiyama, Mt. Higashi, Mt. Todaishi and 3 more
- 7waterfalls
- 1ruins and archaeological sites
- 1dive centres
- 1campsitesSokodo Campground
- 6hotels, guesthouses and apartments
- 16restaurants, 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
Hachijō-jima in our other atlases
Everything Coastya, Peakyas, Lakeyas and Cascadyas know about what lies inside Hachijō-jima, each with its own numbers.
2mountainsPeakyas
Highest point
854m
Mount Nishi
according to Peakyas
The shape of the land.
On average the island stands 225 m above the sea. 53 % of it is below 200 m.
- 13 %0–50 m
- 40 %50–200 m
- 37 %200–500 m
- 10 %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.
5 km
All outlines drawn to the same scale (Natural Earth and OpenStreetMap).
Towns on the island
- Hachijō7,211 people
Month by month
The weather on the island.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Afternoon high (°C) | 15 | 15 | 17 | 19 | 21 | 24 | 27 | 28 | 27 | 25 | 22 | 18 |
| Night low (°C) | 13 | 13 | 14 | 17 | 20 | 22 | 26 | 27 | 26 | 23 | 20 | 16 |
| Sea (°C) | 20 | 19 | 19 | 20 | 22 | 23 | 26 | 28 | 27 | 26 | 24 | 21 |
| Rain (mm) | 90 | 96 | 137 | 157 | 205 | 276 | 176 | 140 | 214 | 217 | 142 | 111 |
| Wet days | 15 | 14 | 17 | 15 | 16 | 20 | 20 | 18 | 20 | 19 | 15 | 15 |
| Sun h/day | 2.9 | 3.2 | 4.3 | 5.4 | 5.9 | 4.7 | 7.2 | 8.6 | 6.2 | 4.1 | 3.5 | 3.1 |
| Wind (km/h) | 35 | 33 | 32 | 28 | 25 | 24 | 23 | 20 | 24 | 28 | 28 | 34 |
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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2020 | +1.0 | +1.3 | +0.3 | +0.5 | +0.3 | +0.6 | +0.5 | +1.3 | +1.2 | +0.6 | +1.3 | +1.7 |
| 2021 | +0.7 | +0.6 | +0.1 | +1.0 | +0.7 | +0.9 | −0.1 | +0.2 | +0.7 | +0.5 | +0.1 | +0.1 |
| 2022 | +0.2 | +0.5 | +0.8 | +1.5 | −0.1 | −0.1 | +0.3 | +0.9 | +1.2 | +1.2 | +0.4 | +0.7 |
| 2023 | +0.2 | +0.9 | +1.0 | +0.9 | −0.1 | +0.6 | +0.7 | +0.5 | +0.5 | +0.9 | +1.1 | +1.7 |
| 2024 | +1.3 | +1.5 | +1.2 | +1.0 | +1.5 | +0.6 | +1.3 | +0.9 | +1.8 | +2.0 | +1.5 | +0.7 |
| 2025 | +0.9 | +0.5 | +0.3 | +0.3 | +0.9 | +0.6 | +1.1 | −0.3 | +1.5 | +0.8 | +0.9 | +1.8 |
+1 warmer than usual −1 cooler than usual
Photos
Seen by visitors.
Nearby
More islands nearby.
About these numbers
| Names, area, population | Wikidata (Q1191120) · CC0 |
|---|---|
| Outline | © OpenStreetMap contributors · ODbL |
| Sea temperature | NOAA OISST v2.1 · 1991–2020 |
| Climate | NASA POWER · 1991–2020 |
| Relief, 3D model | Copernicus DEM GLO-30 · © DLR e.V., © Airbus Defence and Space GmbH, Copernicus/ESA |
| Beaches, ports, lighthouses, trails | © OpenStreetMap contributors · ODbL |
| Towns | GeoNames · CC BY 4.0 |
| Images | EOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons |
| Beaches, mountains, lakes and waterfalls | Peakyas — 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.
beaches
Find your beach: sea temperature, sun and swimming month by month.Visit 
lakes
Every lake on Earth: water temperature, ice, depth and the shore.Coming soonVisit mountains
Every summit in 3D: summit weather, the 0 °C line, huts and trails.Visit 
waterfalls
Every waterfall: height, flow month by month and when it roars.Coming soonVisit 
islands
Every island from the sea up: size, sea temperature, ferries and 3D.You are here
rivers
Every river from source to sea: the journey, the flow and the basin in numbers.Visit 
canyons
Every canyon cut to scale: depth to the floor, rim and floor temperatures, trails and viewpoints.Visit