JapanOgasawara ArchipelagoIslandUNESCO World Heritage
Okinotorishima
0.005 km² of land in the Philippine Sea.
Satellite: Sentinel-2 cloudless 2016 by EOX (CC BY 4.0). Outline and points © OpenStreetMap contributors / Natural Earth. North up.
In numbers
0.005km²
Area
1km
Coastline
2m
Highest point
0
People
30°C
Warmest sea
July
1,742km
To the mainland
When to go to Okinotorishima
Best for the beach from January to April.
The sea is warmest in July (30 °C) and coolest in February (25 °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.
Reef
Okinotorishima is an island in Japan. It belongs to Ogasawara Archipelago. It covers 0.005 km², with 1 km of coastline. Its highest point rises to 2 m. Nobody lives on it. The nearest mainland is 1,742 km away. It is part of a UNESCO World Heritage site.
Getting there
- 1,742 km from the mainlanddistance to the nearest continental coast
- From January to Aprilbest 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 Okinotorishima.
- 1lighthouses
Counted in OpenStreetMap, the map anyone can edit, inside the island's outline. A low number may only mean nobody has mapped it yet.
The shape of the land.
On average the island stands 0 m above the sea. 100 % of it is below 200 m.
- 100 %0–50 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).
Month by month
The weather on the island.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Afternoon high (°C) | 24 | 24 | 25 | 26 | 28 | 29 | 29 | 29 | 29 | 29 | 28 | 26 |
| Night low (°C) | 24 | 23 | 24 | 26 | 27 | 28 | 28 | 28 | 28 | 28 | 27 | 26 |
| Sea (°C) | 26 | 25 | 25 | 27 | 28 | 29 | 30 | 29 | 29 | 29 | 28 | 27 |
| Rain (mm) | 43 | 36 | 45 | 44 | 104 | 93 | 157 | 232 | 173 | 135 | 103 | 78 |
| Wet days | 10 | 9 | 8 | 10 | 16 | 15 | 23 | 24 | 21 | 19 | 14 | 15 |
| Sun h/day | 6.2 | 7.5 | 8.1 | 9.3 | 9.3 | 9.6 | 8.6 | 7.3 | 7.9 | 7.5 | 7.1 | 5.7 |
| Wind (km/h) | 27 | 25 | 22 | 19 | 17 | 18 | 20 | 22 | 22 | 25 | 27 | 28 |
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 | +0.7 | +1.0 | +0.3 | +1.0 | +0.8 | +1.2 | +1.2 | +0.7 | +0.7 | +1.1 | +1.6 |
| 2021 | +1.1 | +1.6 | +1.7 | +0.7 | +0.5 | +0.8 | ±0.0 | +0.1 | +0.4 | ±0.0 | +0.2 | −0.4 |
| 2022 | +0.2 | −0.2 | +0.6 | +1.1 | +0.9 | +0.9 | +0.8 | +1.1 | +0.5 | +0.4 | +1.1 | +0.9 |
| 2023 | −0.2 | −0.5 | +1.0 | +0.5 | +0.2 | −0.3 | +0.4 | +0.4 | +0.7 | +1.0 | +1.2 | +1.2 |
| 2024 | +0.7 | +1.2 | +0.5 | +0.9 | +0.9 | +0.9 | +1.1 | +0.8 | +0.8 | +1.0 | +0.9 | +0.6 |
| 2025 | −0.2 | +0.4 | −0.2 | +0.5 | +1.6 | +1.0 | +0.7 | +0.2 | +0.5 | +0.9 | +1.2 | +0.5 |
+1 warmer than usual −1 cooler than usual
Photos
Seen by visitors.


About these numbers
| Names, area, population | Wikidata (Q908529) · 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 |
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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