Geruma Island Island
Small Okinawan island with local communities
Geruma Island at a Glance#
Address: Geruma Island, Okinawa Prefecture, Japan
Admission: N/A
About Geruma Island#
Geruma Island (Geruma-jima) is a small island in Okinawa Prefecture, Japan, within the Kerama Islands archipelago. It is one of several low-lying islands in this subtropical cluster.
The island is visited for its coastal scenery and nearshore marine environment typical of the Kerama Islands, which are known for diving and clear water. Facilities and services on very small Kerama islets are limited compared with the larger islands.
Like other Kerama islets, Geruma has been part of Okinawan maritime communities and regional navigation routes; specific historical events tied to the island are not prominent in broad sources.
Located in the East China Sea off the west coast of Okinawa Island, Geruma lies close to other Kerama islands and is reached by local boat services from larger islands in the group.
- Archipelago context: Part of the Kerama Islands group southwest of Okinawa’s main island, often visited on short boat trips from larger Kerama islands.
How to Get to Geruma Island#
Typically reached by local ferries or charter boats from larger nearby Okinawan islands or main ports; check local island ferry timetables for exact routes.
Tips for Visiting Geruma Island#
- Access is typically by local boat from nearby larger islands - confirm schedules locally in Okinawa Prefecture.
- Respect local customs and private land signs; many small Okinawan islets have limited infrastructure.
- Bring snorkeling gear if the weather is calm - reefs around such islands can be rich but fragile.
Best Time to Visit Geruma Island#
Geruma Island is a small island in Okinawa Prefecture, Japan; access and facilities are limited, and visits are usually local and informal.
Weather & Climate near Geruma Island#
Subtropical climate with hot summers (peaking in July) and mild winters (coldest in February). Temperatures range from 15°C to 30°C. Heavy rainfall (2166 mm/year), wettest in August.
| Month | Comfort | Temp | Feels | Rain | Sky | Humidity | Wind | UV | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | Acceptable | 15° - 19° | 17° | 132 mm | overcast | 75% | 4.9 m/s | 0.7 moderate | 10.6h |
| February | Acceptable | 15° - 19° | 17° | 129 mm | overcast | 77% | 4.7 m/s | 1.0 high | 11.1h |
| March | Acceptable | 17° - 21° | 19° | 177 mm | overcast | 77% | 4.5 m/s | 1.3 high | 11.9h |
| April | Good | 19° - 23° | 21° | 184 mm | overcast | 80% | 4.5 m/s | 1.5 very high | 12.7h |
| May | Good | 22° - 25° | 24° | 240 mm | overcast | 84% | 4.2 m/s | 1.8 very high | 13.3h |
| June | Good | 25° - 29° | 27° | 243 mm | overcast | 88% | 4.0 m/s | 2.1 extreme | 13.6h |
| July | Very Good | 26° - 31° | 34° | 175 mm | partly cloudy | 83% | 4.3 m/s | 2.5 extreme | 13.5h |
| August | Very Good | 26° - 30° | 33° | 252 mm | partly cloudy | 82% | 4.9 m/s | 2.3 extreme | 12.9h |
| September | Very Good | 25° - 29° | 30° | 216 mm | partly cloudy | 80% | 4.3 m/s | 1.9 very high | 12.2h |
| October | Very Good | 23° - 27° | 25° | 174 mm | partly cloudy | 77% | 4.7 m/s | 1.4 high | 11.4h |
| November | Very Good | 20° - 24° | 22° | 134 mm | overcast | 76% | 5.0 m/s | 0.9 moderate | 10.7h |
| December | Good | 17° - 21° | 19° | 110 mm | overcast | 75% | 4.3 m/s | 0.7 moderate | 10.4h |
