Nishinoshima (Ogasawara)Nishinoshima (Ogasawara) at a Glance#
Nishinoshima is a small volcanic island in the Ogasawara (Bonin) archipelago administered by Tokyo, Japan, notable for its recent volcanic activity that significantly altered its size and shape. The island is uninhabited and of interest mainly to volcanologists and government observers.
There are no regular tourist facilities; the island’s volcanic cones, lava fields and new coastal landforms are of scientific interest and ephemeral scenic value from distant observation. Access is typically restricted for safety when the volcano is active, so landings are uncommon and usually limited to official research teams.
Nishinoshima has experienced repeated eruptions in the modern era; a notable eruptive phase beginning in 2013 produced new land and enlarged the island footprint, and subsequent activity has been monitored by Japanese authorities. The island’s morphology has changed multiple times as lava flows have built new coastal areas.
The island lies in the northwestern Pacific as part of the Ogasawara Islands, roughly 1,000 kilometres south of Tokyo, and is remote from inhabited islands in the archipelago.
- Restricted access: Access to the island is restricted during periods of volcanic activity and it is generally visited by researchers rather than regular tourist services.
- Volcanic activity: Part of the Ogasawara (Bonin) island chain and administered by Tokyo, the island is an active volcanic site closely monitored by Japanese geological authorities.
Best Time to Visit Nishinoshima (Ogasawara)#
Late autumn through spring (roughly Oct-May) is the most reliable time to visit to avoid typhoons and calmer seas for access.
Weather & Climate near Nishinoshima (Ogasawara)#
Subtropical climate with hot summers (peaking in August) and mild winters (coldest in February). Temperatures range from 16°C to 30°C. Abundant rainfall (1526 mm/year), wettest in October.
| Month | Comfort | Temp | Feels | Rain | Sky | Humidity | Wind | UV | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | Good | 17° - 21° | 19° | 99 mm | overcast | 72% | 5.0 m/s | 0.9 moderate | 10.5h |
| February | Good | 16° - 20° | 18° | 81 mm | overcast | 74% | 5.2 m/s | 1.2 high | 11.1h |
| March | Good | 18° - 21° | 19° | 76 mm | overcast | 77% | 5.3 m/s | 1.6 very high | 11.9h |
| April | Very Good | 20° - 23° | 21° | 110 mm | overcast | 82% | 5.3 m/s | 1.8 very high | 12.7h |
| May | Good | 22° - 25° | 24° | 183 mm | overcast | 87% | 4.8 m/s | 2.0 very high | 13.4h |
| June | Very Good | 25° - 28° | 26° | 155 mm | partly cloudy | 88% | 4.2 m/s | 2.4 extreme | 13.7h |
| July | Excellent | 27° - 30° | 33° | 98 mm | partly cloudy | 83% | 4.6 m/s | 2.6 extreme | 13.6h |
| August | Very Good | 27° - 30° | 34° | 116 mm | partly cloudy | 83% | 5.2 m/s | 2.4 extreme | 13.0h |
| September | Very Good | 27° - 30° | 34° | 129 mm | partly cloudy | 82% | 5.4 m/s | 2.1 extreme | 12.2h |
| October | Very Good | 25° - 28° | 27° | 186 mm | partly cloudy | 81% | 5.1 m/s | 1.5 very high | 11.4h |
| November | Very Good | 23° - 26° | 24° | 161 mm | partly cloudy | 77% | 4.7 m/s | 1.0 high | 10.7h |
| December | Very Good | 20° - 23° | 21° | 132 mm | overcast | 74% | 4.7 m/s | 0.8 moderate | 10.3h |
How to Get to Nishinoshima (Ogasawara)#
Nishinoshima (Ogasawara) is reached from Tokyo: take the Ogasawara Kisen ferry (Ogasawara-maru) from Takeshiba Passenger Terminal in Tokyo to the main Ogasawara island of Chichijima (the ferry voyage is about 24-25 hours). From Chichijima access to other Ogasawara islands such as Nishinoshima is by local boat or charter - inter-island service is limited and irregular, so plan transfers in advance; landings usually require a short boat ride from Chichijima’s harbor.
Tips for Visiting Nishinoshima (Ogasawara)#
- Plan to join an authorized boat sightseeing cruise from Chichijima (Ogasawara) in calm morning seas - landings are usually prohibited and operators limit close approaches for safety, so mornings offer the smoothest viewing and photography conditions.
- Confirm access and landing rules well before travel: Nishinoshima is an active volcanic island and the Japan Coast Guard and local authorities frequently restrict visits - only licensed operators are allowed to approach, and landing typically requires special permission.
- Most visitors miss how rapidly the shoreline and lava features change after eruptions; choose an operator who updates routes based on recent volcanic activity so you see current flows and new coastline formations rather than outdated maps.