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Nishibama

The Kerama Islands, located on the western side of Naha City in Okinawa Prefecture, Japan, are renowned as one of the finest diving destinations worldwide. Divers from across the globe flock to these picturesque islands. Nishihama Beach, situated to the west of Aka Island within the Kerama Islands, stands out as an exceptional diving spot in the Aka Island area.

On your diving adventure, you'll have the opportunity to observe a variety of marine life up close, including the impressive grouper and an array of vibrant fish such as the yellow-flanked snapper, Keramana flounder, yellow snappers, and Debus damselfish. The coral reefs present a breathtaking sight with their exquisite beauty. Furthermore, keep an eye out for red-eyed shrimps, Shiroboshi seagull shrimps, Azahata (grouper), astragalus, scorpionfish, blue-eyed angelfish, flat-headed flounder, Keramana grouper, and more.

Immerse yourself in the beauty of sandy beaches, crystal clear waters, and a diverse range of marine creatures. Venturing down to a depth of 25 meters, you'll discover a solitary route amidst the white sandy soil, where a splendid pair of bright red groupers reside. Witness the mesmerizing sight of a school of blue-and-white corals, as well as the captivating chase of yellow-eyed snappers. Additionally, marvel at the shrimp gracefully cleaning the blue-and-white corals.

With a visibility of 21 meters, maximum depth reaching 17 meters, and suitability for divers of varying experience levels, including beginners and advanced divers, the Kerama Islands offer an unforgettable underwater exploration. Situated conveniently close to beautiful corals, 慶良間空港阿嘉線, Aka, Zamami, Shimajiri, Okinawa Prefecture, Japan 901-3311, this captivating dive site awaits your discovery.

Diving Conditions Score for Nishibama

8
Very Good

Very good diving conditions!
The score is based on a calculation of the current weather and sea conditions.

Dive Site Overview for Nishibama

Depth

17m

Visibility

21m

Experience Level

beginner
advanced

Weather Conditions for Nishibama

Wave Height

1.04m

Wind Speed

19.5 m/s

Water Temp

26.4°C

Visibility

23.94km

Cloud Cover

98%

Wave Period

5.95s

Air Temperature

27°C

Precipitation

0 mm

Detailed 7-Day Diving Forecast for Nishibama
Alpha

Dive Score Chart for Nishibama

Best time to dive: 13:00 with score 7.938723529411765/10. Water conditions: Waves 0.84m, Wind 15.9 m/s.Best night dive time: 23:00 with score 7.413683060109289/10.

Chart showing hourly dive conditions including wave height, wind speed, water temperature, and visibility throughout the day.

Sunrise at Nishibama: 06:00
Sunset at Nishibama: 18:00

Optimal diving conditions at Nishibama are affected by daylight hours. Sunrise occurs at 06:00 and sunset at 18:00, which impacts visibility and water temperature for scuba diving and snorkeling.

🌞
Best Overall
13:00

Score: 7.9/10
Waves: 0.84m (5.95s), Wind: 15.9 m/s

🌙
Best Night
23:00

Score: 7.4/10
Waves: 0.8m, Wind: 15.2 m/s

Seasonal Analysis for Nishibama
Alpha

Historical patterns and best seasons for diving at Nishibama

The dive score combines all factors to rate overall diving conditions throughout the year. Higher scores indicate better diving conditions.

Monthly Dive Score Analysis - Seasonal Diving Conditions

Higher values indicate better diving conditions

Seasonal DiveScore Chart

This chart displays monthly diveScore data throughout the year, showing seasonal patterns. The data is presented as a bar chart with an overlaid line graph.Dive scores range from 1 to 10, with 10 being optimal conditions.

Higher values indicate better diving conditions

Best Season for Nishibama

Winter

Avg. Score: 8.4/10

Winter offers the best overall diving conditions with calmer seas and better visibility, despite cooler temperatures.

Best Months for Nishibama

January
Score: 8.5
November
Score: 8.4
December
Score: 8.4

Ideal Conditions for Nishibama

Water Temp

Thermometer Emoji

26.7°C / 80.1°F

June

Visibility

Telescope Emoji

11.8m / 38.7ft

August

Wave Height

Wave Emoji

2.7m / 8.9ft

April

Wave Period

Wave Emoji

8.0s

January

Seasonal Insights for Nishibama

Nishibama shows typical northern hemisphere patterns with July being the warmest month (28.5°C) and January the coldest (15.1°C). The calmest conditions typically occur in April with average wave heights of 2.7m and wave periods of 8.0s. The most comfortable wave conditions are in April with a low wave steepness ratio, creating gentler swells. January offers the longest wave periods (8.0s), creating more comfortable and predictable conditions for boat entries and exits. Ocean currents are slowest in January (0.5m/s) and strongest in January (0.5m/s). March is usually the driest month with 0.1mm of precipitation. For beginners, the best time to visit would be during April to June, when ocean conditions are calmer with long-period waves and currents are typically weaker. Experienced divers might enjoy the challenges and potentially better visibility during the shoulder seasons, with moderate currents that can improve marine life encounters.

Scoring Legend:
9-10 (Excellent)
7-8 (Good)
5-6 (Average)
3-4 (Poor)
1-2 (Dangerous)

Last updated: 1 min. ago - Jun 29, 2026

Note: This dive site is not a verified dive site. Please dive with caution. This dive site might have incorrect information by the community.

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