Skip to content
Go to Dive Champ home pageDive Champ LogoDive Champ

Iejima Island

Iejima, located in the northern part of Okinawa, Japan, offers a secluded diving experience. A quick 30-minute car ferry ride from Motobu Port brings you to this remote island. Known for its boat dives, Iejima boasts a diverse underwater landscape that varies from north to south.

Diving enthusiasts have the opportunity to witness rare marine creatures such as the giant flying fish, red-headed coral fish, and red-headed frogfish. Explore the domes and caves to encounter fascinating species including goblins, red pine scorpionfish, turmeric clams, lobster pygmy goblins, and green pygmy goblins. Along the drop-offs, you'll also encounter flounder, spiny dogfish, and Napoleon fish.

The northern side of Iejima is characterized by its dynamic terrain featuring caves, arches, and drop-offs, providing an exciting diving adventure. On the other hand, the southern side offers serene dive spots with pristine white sand and scattered coral roots. Notably, this area holds historical significance as it served as a fierce battlefield during the Pacific War, with remnants of that era still visible underwater.

Optimize your diving experience with excellent visibility levels of 22m and a maximum depth of 19m. Whether you are a beginner or an advanced diver, Iejima welcomes all skill levels.

Dive into the underwater wonders of Iejima, Japan, and explore the incredible marine life and intriguing dive sites that await you.

Diving Conditions Score for Iejima Island

8.2
Very Good

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

Dive Site Overview for Iejima Island

Depth

19m

Visibility

22m

Experience Level

beginner
advanced

Weather Conditions for Iejima Island

Wave Height

0.62m

Wind Speed

22.1 m/s

Water Temp

25.7°C

Visibility

17.04km

Cloud Cover

98%

Wave Period

4.3s

Air Temperature

25.5°C

Precipitation

0 mm

Detailed 7-Day Diving Forecast for Iejima Island
Alpha

Dive Score Chart for Iejima Island

Best time to dive: 17:00 with score 8.004285714285714/10. Water conditions: Waves 0.6m, Wind 20.6 m/s.Best night dive time: 23:00 with score 7.733104395604395/10.

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

Sunrise at Iejima Island: 06:00
Sunset at Iejima Island: 18:00

Optimal diving conditions at Iejima Island 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
17:00

Score: 8.0/10
Waves: 0.6m (4.2s), Wind: 20.6 m/s

🌙
Best Night
23:00

Score: 7.7/10
Waves: 0.64m, Wind: 19.9 m/s

Seasonal Analysis for Iejima Island
Alpha

Historical patterns and best seasons for diving at Iejima Island

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 Iejima Island

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 Iejima Island

January
Score: 8.5
February
Score: 8.3
November
Score: 8.3

Ideal Conditions for Iejima Island

Water Temp

Thermometer Emoji

27.6°C / 81.7°F

July

Visibility

Telescope Emoji

11.8m / 38.7ft

October

Wave Height

Wave Emoji

2.6m / 8.5ft

January

Wave Period

Wave Emoji

8.0s

January

Seasonal Insights for Iejima Island

Iejima Island shows typical northern hemisphere patterns with August being the warmest month (27.8°C) and January the coldest (14.0°C). The calmest conditions typically occur in January with average wave heights of 2.6m and wave periods of 8.0s. The most comfortable wave conditions are in January 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). April is usually the driest month with 0.0mm of precipitation. For beginners, the best time to visit would be during January to March, 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 18, 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.

19 Dive sites near Iejima Island in

Find more dive sites in Japan

JapanJapan

Japan

Got feedback?

Help us improve this dive site by giving us feedback.