Mikura-jimaMikura-jima is a small volcanic island in the northern Izu Islands administered by Tokyo, Japan. It is notable for its rich marine life and as a breeding area for several seabird species.
Marine wildlife and coastal scenery are the primary draws. Guided boat trips and short coastal walks provide opportunities to see dolphins, seabirds and rocky-cliff coastline; a handful of short trails and viewpoints circle parts of the island.
The island is of volcanic origin and has long been settled by small fishing communities; it is managed within Tokyo’s island administrative framework and has protected natural areas to conserve wildlife.
Mikura-jima sits in the northern Izu archipelago, roughly south of central Tokyo, and lies near other inhabited Izu islands. The island’s settlements are concentrated on sheltered bays and the shoreline is dominated by steep volcanic cliffs.
- Wildlife highlights: Marine wildlife viewing is the island’s main attraction, with regular sightings of dolphins close to shore and important seabird nesting colonies.
- Getting there: Access is by scheduled passenger boat and by small aircraft services from larger Izu islands and Tokyo-area hubs; services are limited so check timetables in advance.
Best Time to Visit Mikura-jima#
Late spring through early autumn offers the best marine activity opportunities, but avoid or monitor the typhoon season.
Weather & Climate near Mikura-jima#
Mikura-jima's climate is classified as Humid Subtropical - Humid Subtropical climate with warm summers (peaking in August) and cold winters (coldest in February). Temperatures range from 4°C to 26°C. Heavy rainfall (2684 mm/year), wettest in June.
| Month | Comfort | Temp | Feels | Rain | Sky | Humidity | Wind | UV | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | Poor | 5° - 11° | 5° | 121 mm | overcast | 71% | 6.2 m/s | 0.4 low | 10.1h |
| February | Poor | 4° - 11° | 4° | 141 mm | overcast | 72% | 6.1 m/s | 0.7 moderate | 10.9h |
| March | Poor | 6° - 12° | 6° | 208 mm | overcast | 72% | 5.5 m/s | 1.0 moderate | 11.9h |
| April | Acceptable | 10° - 16° | 13° | 219 mm | overcast | 75% | 6.3 m/s | 1.3 high | 12.9h |
| May | Acceptable | 13° - 19° | 16° | 250 mm | overcast | 80% | 5.3 m/s | 1.6 very high | 13.8h |
| June | Good | 16° - 22° | 19° | 325 mm | overcast | 87% | 4.8 m/s | 1.6 very high | 14.2h |
| July | Good | 20° - 25° | 22° | 205 mm | overcast | 90% | 4.8 m/s | 2.0 extreme | 14.0h |
| August | Very Good | 21° - 26° | 23° | 258 mm | partly cloudy | 85% | 4.9 m/s | 2.1 extreme | 13.2h |
| September | Very Good | 19° - 24° | 21° | 313 mm | partly cloudy | 81% | 4.9 m/s | 1.5 very high | 12.3h |
| October | Acceptable | 15° - 20° | 18° | 319 mm | overcast | 76% | 6.1 m/s | 1.0 moderate | 11.2h |
| November | Acceptable | 11° - 17° | 14° | 206 mm | overcast | 72% | 5.7 m/s | 0.6 moderate | 10.3h |
| December | Acceptable | 7° - 14° | 10° | 119 mm | overcast | 71% | 5.6 m/s | 0.4 low | 9.8h |
How to Get to Mikura-jima#
Mikura‑jima (Mikurajima) is one of the Izu Islands and has no airport - it is reached by passenger ferry. Ferries operate from Shimoda on the Izu Peninsula and from Tokyo (Takeshiba) on scheduled services (operators such as Tokai Kisen); crossings take several hours depending on the route and vessel.
On arrival the island is small and walkable; local paths and short taxis connect the harbour with the village and trailheads.
Tips for Visiting Mikura-jima#
- Book ferry or flight transport and any dolphin‑watching trips well in advance-Mikura‑jima has limited visitor capacity and accommodation, so schedules and places fill quickly.
- Plan dolphin‑watching outings from the island rather than trying to sightsee from the ferry; local boat operators run the trips and mornings or calm sea days give the best chances for encounters.
- Respect conservation rules and local guidance: the island has fragile habitats and facilities are minimal, so prioritize organized tours and avoid exploring restricted areas.