Goto Islands
The Goto Islands, influenced by the Tsushima Current, offer a mesmerizing underwater world teeming with marine life. Experience the thrill of diving amidst dense fish populations and vibrant coral formations, including dazzling displays of colorful corals and soft corals. Encounter magnificent migratory fish such as yellowtail, bluefin tuna, and schools of vivid sea bass, big yellowtail, and aras.
Whether you seek exhilarating encounters with large migratory fish or prefer the serene beauty of coral reefs, the Goto Islands have it all. Dive into the depths to uncover dynamic points where amazing migrations can be witnessed, or take your time exploring the exquisite coral gardens. Moreover, a massive 120-meter shipwreck, dramatic terrains, caves, and stunning topography complement the diverse dive sites, including the legendary bluefin tuna crematorium. These captivating underwater landscapes are sure to delight both beginners and seasoned divers alike.
Located in Michidoigo, Shinkami Gotou, Minami-Matsuura County, Nagasaki Prefecture, Japan, this dive destination offers a maximum depth of 24 meters and visibility up to 10 meters. Recommended for advanced and expert divers, the Goto Islands promise an unforgettable underwater adventure in the heart of Japan's enchanting waters.
Diving Conditions Score for Goto Islands
Good diving conditions!
The score is based on a calculation of the current weather and sea conditions.
Dive Site Overview for Goto Islands
Depth
24m
Visibility
10m
Experience Level
Weather Conditions for Goto Islands
Wave Height
0.64m
Wind Speed
19.4 m/s
Water Temp
24.4°C
Visibility
26.34km
Cloud Cover
96%
Wave Period
4.45s
Air Temperature
21.3°C
Precipitation
0 mm
Dive Score Chart for Goto Islands
Best time to dive: 7:00 with score 7.5040000000000004/10. Water conditions: Waves 0.66m, Wind 12.8 m/s.Best night dive time: 4:00 with score 7.159857088122604/10.
Chart showing hourly dive conditions including wave height, wind speed, water temperature, and visibility throughout the day.
Optimal diving conditions at Goto 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: 7.5/10
Waves: 0.66m (4.15s), Wind: 12.8 m/s
Score: 7.2/10
Waves: 0.64m, Wind: 20.4 m/s
Seasonal Analysis for Goto IslandsAlpha
Historical patterns and best seasons for diving at Goto 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 Goto Islands
Winter
Winter offers the best overall diving conditions with calmer seas and better visibility, despite cooler temperatures.
Best Months for Goto Islands
Ideal Conditions for Goto Islands
Water Temp
26.8°C / 80.2°F
August
Visibility
13.0m / 42.7ft
November
Wave Height
1.5m / 4.9ft
January
Wave Period
8.0s
January
Seasonal Insights for Goto Islands
Goto Islands shows typical northern hemisphere patterns with August being the warmest month (26.8°C) and February the coldest (3.8°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). 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 22, 2026