Glass World
Anchors are strategically placed at four main locations, providing convenient access to the dive site from the shallow area. The depth here ranges from approximately 8 meters below the anchors in the shallow area to about 15 meters at the other anchor points. It's important to be cautious and avoid touching the delicate white corals that form beautiful clusters in this area.
Maintaining neutral buoyancy is crucial while exploring this dive site, as the sandy seabed and intricate root systems must be protected to preserve the diverse marine habitat. Fortunately, the current is usually minimal, making it an easy and relaxing dive.
One of the highlights here is the opportunity to observe green turtles resting in the shallow Shikoro coral zone. This enchanting dive site also offers sightings of various species of wrasse, for which it is aptly named. These colorful fish can be seen year-round, adding vibrancy to your underwater adventure.
For macro enthusiasts, the sandy areas are home to fascinating creatures such as jawfish and seahorses, while the coral reefs play host to schools of snappers. You may even spot solas snappers gathering at the tops of the roots and in the shallows.
With an average depth of about 15 meters, Shionomisaki Dive Site is a great choice for both beginners and advanced divers. It offers a safe and enriching diving experience, allowing you to explore the underwater world with ease. Additionally, the dive site is known for its population of spiny eels, adding to the diversity of marine life you may encounter.
In this captivating underwater realm, you may also have the chance to encounter various fish species, such as kampachi and tsuburi, thanks to the tidal passage that brings in a steady stream of marine life. Macro enthusiasts will appreciate the abundance of jawfish, frogfish, and spiny lobsters, creating a truly immersive underwater adventure.
Discover the wonders of Shionomisaki Dive Site and dive into a world filled with vibrant corals, captivating marine life, and unforgettable experiences. Plan your dive in Japan's Wakayama Prefecture and embark on a remarkable underwater journey.
Diving Conditions Score for Glass World
Good diving conditions!
The score is based on a calculation of the current weather and sea conditions.
Dive Site Overview for Glass World
Depth
17m
Visibility
10m
Experience Level
Weather Conditions for Glass World
Wave Height
1.24m
Wind Speed
6.8 m/s
Water Temp
24.8°C
Visibility
20.26km
Cloud Cover
100%
Wave Period
6.95s
Air Temperature
23.6°C
Precipitation
0 mm
Dive Score Chart for Glass World
Best time to dive: 13:00 with score 6.8402/10. Water conditions: Waves 1.24m, Wind 6.8 m/s.Best night dive time: 23:00 with score 6.374600000000001/10.
Chart showing hourly dive conditions including wave height, wind speed, water temperature, and visibility throughout the day.
Optimal diving conditions at Glass World 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.
Score: 6.8/10
Waves: 1.24m (6.95s), Wind: 6.8 m/s
Score: 6.4/10
Waves: 1.16m, Wind: 5.6 m/s
Seasonal Analysis for Glass WorldAlpha
Historical patterns and best seasons for diving at Glass World
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 Glass World
Winter
Winter offers the best overall diving conditions with calmer seas and better visibility, despite cooler temperatures.
Best Months for Glass World
Ideal Conditions for Glass World
Water Temp
26.8°C / 80.2°F
August
Visibility
14.4m / 47.2ft
November
Wave Height
1.2m / 3.9ft
January
Wave Period
8.0s
January
Seasonal Insights for Glass World
Glass World shows typical northern hemisphere patterns with August being the warmest month (26.8°C) and January the coldest (3.5°C). The calmest conditions typically occur in January with average wave heights of 1.2m 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). January 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.
Last updated: 1 min. ago - Jun 18, 2026