Tokara Islands
Divers visiting these islands can expect to encounter mesmerizing schools of migratory fish such as bigeye trevally, bluefin trevally, Napoleon, marlin, hammerhead sharks, and stingrays. For those seeking an unforgettable encounter, there is also a manta ray point at the northern limit and an undersea hot spring point to explore.
The expedition point can be reached in 30 to 45 minutes, depending on the sea conditions. Due to the direct impact of the powerful Kuroshio Current, all dive sites are subject to a current, providing a high likelihood of encountering impressive marine life. The water temperature ranges from a warm 23 degrees Celsius in winter to a tropical 30 degrees Celsius in summer. With no rivers on the island, visibility remains excellent throughout the year, averaging between 20 to 30 meters.
For advanced and expert divers, these islands in Toshima, Kagoshima County, Kagoshima Prefecture, Japan, offer an exceptional diving experience. Make the most of your underwater adventure in this pristine location.
Diving Conditions Score for Tokara Islands
Good diving conditions!
The score is based on a calculation of the current weather and sea conditions.
Dive Site Overview for Tokara Islands
Experience Level
Weather Conditions for Tokara Islands
Wave Height
1.82m
Wind Speed
36.9 m/s
Water Temp
28°C
Visibility
25.12km
Cloud Cover
57%
Wave Period
6.1s
Air Temperature
26.8°C
Precipitation
0 mm
Dive Score Chart for Tokara Islands
Best time to dive: 15:00 with score 6.0676000000000005/10. Water conditions: Waves 1.68m, Wind 34.4 m/s.Best night dive time: 0:00 with score 5.648700000000001/10.
Chart showing hourly dive conditions including wave height, wind speed, water temperature, and visibility throughout the day.
Optimal diving conditions at Tokara Islands 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: 6.1/10
Waves: 1.68m (6.1s), Wind: 34.4 m/s
Score: 5.6/10
Waves: 1.58m, Wind: 33 m/s
Seasonal Analysis for Tokara IslandsAlpha
Historical patterns and best seasons for diving at Tokara Islands
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 Tokara Islands
Winter
Winter offers the best overall diving conditions with calmer seas and better visibility, despite cooler temperatures.
Best Months for Tokara Islands
Ideal Conditions for Tokara Islands
Water Temp
28.2°C / 82.8°F
July
Visibility
11.8m / 38.7ft
October
Wave Height
2.9m / 9.5ft
January
Wave Period
8.0s
January
Seasonal Insights for Tokara Islands
Tokara Islands shows typical northern hemisphere patterns with August being the warmest month (28.4°C) and February the coldest (10.7°C). The calmest conditions typically occur in January with average wave heights of 2.9m 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). October is usually the driest month with 0.2mm 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