Yoron Island
Diving enthusiasts will be delighted by the diverse marine life found in Yoron Island's waters. Macro species such as blue crabs, blue-and-white stonefish, blue-eyed gobies, yellowfin gobies, frogfish, and scorpionfish frequent the area. Additionally, big fish like bluefin tuna, bluefin trevally, flathead trevally, yellowtail, and bigeye trevally can also be observed.
When planning your dive, take note of the seasonal winds which influence diving locations. During summer, the north side of the island is preferred, offering beautiful sandy points and a higher chance of encountering sea turtles. Dive spots like the wreck and the Undersea Palace are particularly popular in this area. In winter, divers flock to the south side of the island, where dynamic terrains unfold and encounters with big fish are more frequent. Keep in mind that winter also brings humpback whale sightings, providing an exciting opportunity to spot these majestic creatures from the comfort of a boat.
Yoron Island's optimal diving conditions include a maximum depth of 14 meters and a visibility of 20 meters. Whether you're a beginner or an experienced diver, this destination caters to all levels of expertise. Discover the breathtaking underwater world of Yoron Island, located in Oshima County, Kagoshima Prefecture, Japan.
Diving Conditions Score for Yoron Island
Very good diving conditions!
The score is based on a calculation of the current weather and sea conditions.
Dive Site Overview for Yoron Island
Depth
14m
Visibility
20m
Experience Level
Weather Conditions for Yoron Island
Wave Height
0.86m
Wind Speed
18.6 m/s
Water Temp
26.4°C
Visibility
27.94km
Cloud Cover
7%
Wave Period
6.35s
Air Temperature
26.6°C
Precipitation
0 mm
Dive Score Chart for Yoron Island
Best time to dive: 6:00 with score 8.166138211382114/10. Water conditions: Waves 0.78m, Wind 8.7 m/s.Best night dive time: 5:00 with score 7.7239743169398904/10.
Chart showing hourly dive conditions including wave height, wind speed, water temperature, and visibility throughout the day.
Optimal diving conditions at Yoron 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.
Score: 8.2/10
Waves: 0.78m (6.15s), Wind: 8.7 m/s
Score: 7.7/10
Waves: 0.78m, Wind: 8.6 m/s
Seasonal Analysis for Yoron IslandAlpha
Historical patterns and best seasons for diving at Yoron 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 Yoron Island
Winter
Winter offers the best overall diving conditions with calmer seas and better visibility, despite cooler temperatures.
Best Months for Yoron Island
Ideal Conditions for Yoron Island
Water Temp
26.2°C / 79.2°F
September
Visibility
11.8m / 38.7ft
August
Wave Height
2.7m / 8.9ft
January
Wave Period
8.0s
January
Seasonal Insights for Yoron Island
Yoron Island shows typical northern hemisphere patterns with August being the warmest month (28.5°C) and February the coldest (14.3°C). The calmest conditions typically occur in January with average wave heights of 2.7m 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). March is usually the driest month with 0.1mm 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 20, 2026