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国土交通省関東地方整備局京浜河川事務所 CC BY-SA 4.0 Wikimedia Commons

Okinotori

Island

An isolated coral reef in the western Pacific, Okinotori-shima marks Japan's southernmost outpost. Access is restricted; the feature has maritime and territorial significance rather than conventional tourist facilities.

Okinotori TokyoYokohamaKamakuraEnoshimaHakoneNikkoKawagoeChibaOkinotori
In this guide

Okinotori essentials

Hours: Landing/access restricted; not a regular tourist destination

About Okinotori

Okinotori (Okinotori-shima) is a very small, remote coral atoll in the northwestern Pacific Ocean under the administration of Tokyo Metropolis. It is uninhabited and consists of exposed rock and reef features rather than a substantial habitable island.

The atoll is strategically notable because Japan claims maritime rights based on the feature and has carried out engineering works to stabilise and mark the rocks. There is no permanent civilian population and the place is visited only for maintenance, meteorological and sovereignty-related activities.

Because the feature is remote and exposed to heavy ocean conditions, access is typically by government vessels and the site is not a conventional tourist destination. Okinotori lies well to the south of the main Japanese archipelago and is isolated in the Pacific.

Geographically it sits far from Japan’s main islands and is administered as part of Tokyo despite its distance from the metropolis.

  • Legal and administrative status: The feature is an uninhabited coral atoll and rock formation administered by Tokyo Metropolis and often referenced in discussions about maritime zones because Japan asserts an exclusive economic zone around it.

Tips for Visiting Okinotori

  • Okinotori is an extremely remote, largely uninhabited atoll with no tourist facilities and very limited access; casual visits are generally impractical.
  • If you have an official reason to go (research, government business), coordinate well in advance with Japanese authorities or a specialist operator - transport is by private vessel only and conditions can be hazardous.
When to Go

Best Time to Visit Okinotori

Access is highly restricted-if travel is possible, aim for the calmer months outside the typhoon season and confirm permissions and vessel schedules.

Outside typhoon season (best)
Apr-Jun · ~24-29°C
Generally calmer seas and weather compared with late summer-access still limited and usually by official or research vessels.
Typhoon season (avoid)
Jun-Nov (peak Aug-Sep) · ~25-30°C
Increased risk of storms and very rough seas; travel and operations are often restricted.
Winter
Dec-Mar · ~20-25°C
Still warm but sea conditions can be variable; access remains restricted and dependent on official permission and vessels.

Weather & Climate near Okinotori

Climate
Air Quality: AQI 16 Good
Temperature & Rainfall
Temperature Range
31°
Warmest Month
20°
Coldest Month