Japan
Satellite: Sentinel-2 cloudless 2016 by EOX (CC BY 4.0). Outline and points © OpenStreetMap contributors / Natural Earth. North up.
In numbers
20.2km²
Area
71km
Coastline
463m
Highest point
Mount Chibusa
450
People
28°C
Warmest sea
August
1,587km
To the mainland
When to go to Hahajima
Best for the beach from June to August and from November to December.
The sea is warmest in August (28 °C) and coolest in February (21 °C). You can swim comfortably all year (21 °C or more).
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.
Inhabited island in the Bonin/Ogasawara archipelago, administered as part of Tokyo, Japan
Hahajima is an island in Japan. It covers 20.2 km², with 71 km of coastline. Its highest point, Mount Chibusa, rises to 463 m. About 450 people live on it. The nearest mainland is 1,587 km away.
Getting there
- Ferries1 ferry terminals on the island
- 1,587 km from the mainlanddistance to the nearest continental coast
- From June to August and from November to Decemberbest months to go (from 30 years of averages)
Plan the trip
Ferries, stays and things to do
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On the island
What you find on Hahajima.
- 13beachesMiyuki Beach and 12 more
- 1lighthouses
- 1ferry terminals
- 14named peaksMt. Chibusa, Mt. Sakaigatake, Mt. Sekimon and 11 more
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
Hahajima in our other atlases
Everything Coastya, Peakyas, Lakeyas and Cascadyas know about what lies inside Hahajima, each with its own numbers.
1beachCoastya
Beach with the warmest sea
28.4°C
Nishi Ura
sea in the warmest month · according to Coastya
The shape of the land.
On average the island stands 129 m above the sea. 77 % of it is below 200 m.
- 26 %0–50 m
- 51 %50–200 m
- 23 %200–500 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).
Month by month
The weather on the island.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Afternoon high (°C) | 20 | 20 | 21 | 22 | 24 | 27 | 28 | 28 | 28 | 27 | 25 | 23 |
| Night low (°C) | 19 | 18 | 19 | 21 | 23 | 26 | 28 | 28 | 28 | 27 | 24 | 21 |
| Sea (°C) | 22 | 21 | 21 | 22 | 24 | 26 | 28 | 28 | 28 | 28 | 26 | 24 |
| Rain (mm) | 56 | 33 | 72 | 98 | 170 | 111 | 92 | 120 | 130 | 120 | 86 | 85 |
| Wet days | 10 | 8 | 11 | 13 | 17 | 13 | 14 | 18 | 16 | 16 | 12 | 12 |
| Sun h/day | 5.2 | 6.3 | 6.6 | 6.5 | 6.8 | 8.9 | 9.6 | 8.9 | 8.4 | 7.4 | 6.0 | 4.5 |
| Wind (km/h) | 25 | 23 | 23 | 22 | 19 | 17 | 17 | 21 | 21 | 21 | 22 | 24 |
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 | +1.5 | +1.0 | +1.0 | −0.3 | +0.1 | +1.4 | +1.0 | +1.5 | +1.8 | +1.2 | +0.4 | +0.5 |
| 2021 | +0.3 | +0.8 | +0.9 | +0.8 | +2.0 | +0.9 | +0.1 | −0.3 | +1.3 | −0.1 | −1.0 | +0.2 |
| 2022 | −0.2 | −0.5 | +0.7 | +0.7 | +1.5 | +1.3 | +0.8 | +1.1 | +0.4 | +0.3 | −0.5 | −0.1 |
| 2023 | −0.1 | −0.5 | −0.2 | +0.7 | +1.1 | +0.7 | +0.6 | +0.5 | +0.4 | +0.3 | −0.1 | −0.1 |
| 2024 | −0.5 | +0.4 | +0.5 | +1.3 | +1.0 | +0.9 | +1.8 | +0.7 | +0.4 | +0.7 | +1.0 | −0.2 |
| 2025 | −0.3 | −0.2 | −0.8 | −0.7 | +1.0 | +1.4 | −0.6 | +0.2 | +1.5 | +1.2 | +1.5 | +1.4 |
+1 warmer than usual −1 cooler than usual
Photos
Seen by visitors.
Nearby
More islands nearby.
About these numbers
| Names, area, population | Wikidata (Q473472) · 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 | Coastya — Wikidata · CC0; © OpenStreetMap contributors · ODbL; GeoNames · CC BY 4.0; NOAA OISST |
Every figure is an average, an estimate or a count from a public dataset. Licences and methods: data sources.
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