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Tetra Mae

Tetra Mae Dive Site is a captivating location situated at the entrance of the Tsuya fishing port in Okinawa Prefecture, Japan. Adjacent to the Ichimonji breakwater's impressive tetrapods, this site offers a picturesque sandy bottom and stunning views of the colossal tetrapods, which have been transformed into fish reefs. As a result, divers can witness an array of underwater creatures thriving in the area. With a manageable depth of approximately 4.5 meters, Tetra Mae is ideal for divers of all experience levels, including beginners seeking an enriching diving experience, training sessions, or even snorkeling adventures. This site is particularly favorable when the wind doesn't blow from the west, making it suitable for introductory freediving lessons.

The anchoring area in Tetra Mae Dive Site is teeming with a lush forest of soft corals, creating a dynamic and visually captivating environment. At a depth of around 5 meters, there is an impressive colony of more than 50 Hamanomi to be observed. Divers will delight in the abundant presence of various fish species, such as snappers, spiny lobsters, clownfish of different varieties, bannerfish, and yellowtail snappers. While exploring the sandy seabed, one can also catch glimpses of gobies gracefully navigating their surroundings. Additionally, sightings of scalloped hammerheads, although rare, have been reported in this remarkable dive spot.

With an exceptional visibility range of 17 meters and a maximum depth of 15 meters, Tetra Mae Dive Site offers diverse opportunities for both beginner and advanced divers. Located conveniently close to Toya, Yomitan, Nakagami, Okinawa Prefecture, this Japanese dive site is a must-visit for those looking to explore the beauty beneath the water's surface. Plan your adventure at Tetra Mae and immerse yourself in a remarkable underwater experience.

Diving Conditions Score for Tetra Mae

8.4
Very Good

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

Dive Site Overview for Tetra Mae

Depth

15m

Visibility

17m

Experience Level

beginner
advanced

Weather Conditions for Tetra Mae

Wave Height

0.54m

Wind Speed

14.3 m/s

Water Temp

26.2°C

Visibility

34.16km

Cloud Cover

56%

Wave Period

4.15s

Air Temperature

25.3°C

Precipitation

0 mm

Detailed 7-Day Diving Forecast for Tetra Mae
Alpha

Dive Score Chart for Tetra Mae

Best time to dive: 9:00 with score 8.33265882352941/10. Water conditions: Waves 0.48m, Wind 12.3 m/s.Best night dive time: 21:00 with score 7.8779650793650795/10.

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

Sunrise at Tetra Mae: 06:00
Sunset at Tetra Mae: 18:00

Optimal diving conditions at Tetra Mae 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
9:00

Score: 8.3/10
Waves: 0.48m (4.25s), Wind: 12.3 m/s

🌞
Safest Overall
11:00

Score: 8.3/10
Waves: 0.48m (4.3s), Wind: 9.4 m/s

🌙
Best Night
21:00

Score: 7.9/10
Waves: 0.58m, Wind: 13.4 m/s

Seasonal Analysis for Tetra Mae
Alpha

Historical patterns and best seasons for diving at Tetra Mae

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 Tetra Mae

Winter

Avg. Score: 8.5/10

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

Best Months for Tetra Mae

January
Score: 8.8
November
Score: 8.4
December
Score: 8.4

Ideal Conditions for Tetra Mae

Water Temp

Thermometer Emoji

26.6°C / 79.9°F

June

Visibility

Telescope Emoji

12.0m / 39.4ft

January

Wave Height

Wave Emoji

1.5m / 4.9ft

January

Wave Period

Wave Emoji

8.0s

January

Seasonal Insights for Tetra Mae

Tetra Mae shows typical northern hemisphere patterns with July being the warmest month (28.3°C) and January the coldest (13.6°C). The calmest conditions typically occur in January with average wave heights of 1.5m 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). December is usually the driest month with 0.3mm 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 19, 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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