Zamami Island Island

Kerama island near Okinawa, noted for diving

Part of the Kerama archipelago, Zamami Island attracts snorkelers and divers with coral reefs, white-sand beaches and ferry links to Naha; seasonal boat tours run for whale-watching and sea kayaking.

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Zamami Island at a Glance#

Address: Zamami Island, Kerama Islands, Okinawa Prefecture, Japan

Website: https://zamami.jp/en/

Admission: Ferry fares vary; expect a round-trip fare from Naha of approximately JPY 3,000-5,000 depending on type of vessel and season

About Zamami Island#

Zamami Island is one of the inhabited islands of the Kerama group in Okinawa Prefecture, Japan, known for clear waters, coral reefs and dive sites. The island is a popular destination for snorkeling, scuba diving and beach recreation.

Beaches and shallow coral areas attract day-trippers and divers; reef channels and drop-offs around the island support coral communities and reef fish. Seasonal boat trips and kayak excursions operate from village piers, and whale-watching outings are offered in winter months when humpback whales pass the Kerama archipelago.

The island developed as small fishing and trade settlements within the Ryukyu island chain and retains a low-density, village-based settlement pattern. Local facilities focus on tourism services such as guesthouses, dive shops and boat operators.

Zamami lies within the Kerama Islands southwest of Okinawa Island, administratively part of Zamami Village in Okinawa Prefecture and reachable by scheduled ferry from Naha.

  • Whale watching season: Humpback whales are commonly sighted in Kerama waters in winter; organized boat trips and kayak tours run in the season.
  • Access and services: Regular ferries connect the island with Naha on Okinawa Island; visitor services concentrate in a few small villages on the island.

How to Get to Zamami Island#

Ferries and high‑speed boats connect Zamami to Naha (Tomari Port) on Okinawa Island; crossing times vary from about 50 minutes (high-speed) to 2 hours (ferry). Book ferries in advance in summer and check for typhoon‑season cancellations.

Tips for Visiting Zamami Island#

  • Book ferries in advance during summer (July-August) when domestic Japanese tourists visit the Kerama islands.
  • Take the short taxi from the port into the island's small village to rent snorkeling gear - coral reefs around Zamami are excellent and well‑protected.
  • Respect local regulations around coral and marine life; the Kerama Islands are a designated conservation area.

Best Time to Visit Zamami Island#

Best visited from late spring through early autumn for snorkeling and diving in clear, warm waters.

Late spring-autumn (snorkeling)
May-October · 22-30°C
Warm seas and excellent underwater visibility for snorkeling and diving; sea conditions can still be variable.
Spring & autumn (calmer temperatures)
April & October-November · 18-25°C
Good weather with fewer crowds; some diving services operate year-round.

Weather & Climate near Zamami Island#

Climate

Subtropical climate with hot summers (peaking in July) and mild winters (coldest in February). Temperatures range from 15°C to 31°C. Heavy rainfall (2173 mm/year), wettest in August.

Air Quality: AQI 50 Good
Best Time to Visit
OctoberJulyAugust
Temperature & Rainfall
Temperature Range
32°
Warmest Month
9°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January Acceptable 15° - 19° 17° 131 mm overcast 75% 4.9 m/s 0.7 moderate 10.6h
February Acceptable 15° - 19° 17° 131 mm overcast 77% 5.1 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° - 26° 24° 241 mm overcast 84% 4.3 m/s 1.8 very high 13.3h
June Good 25° - 29° 27° 248 mm overcast 88% 4.3 m/s 2.1 extreme 13.6h
July Very Good 26° - 31° 34° 176 mm partly cloudy 83% 4.3 m/s 2.5 extreme 13.5h
August Very Good 26° - 30° 33° 252 mm partly cloudy 82% 5.0 m/s 2.3 extreme 12.9h
September Very Good 25° - 29° 30° 215 mm partly cloudy 80% 4.0 m/s 1.9 very high 12.2h
October Very Good 23° - 27° 25° 173 mm partly cloudy 77% 4.8 m/s 1.4 high 11.4h
November Very Good 20° - 24° 22° 135 mm overcast 76% 5.3 m/s 0.9 moderate 10.7h
December Good 17° - 21° 19° 110 mm overcast 75% 4.5 m/s 0.7 moderate 10.4h

Nearby Attractions to Zamami Island#