Nyanko Rock
Discover an incredible dive site located just a short two-minute boat ride from the beautiful West Sea in Japan. For the adventurous souls, it is also reachable by a thrilling 25-minute swim. This dive site attracts divers of all levels, making it an ideal spot for beginners, advanced divers, and experts alike. Its deeper average depth makes it the perfect choice for deep diving training, with depths reaching up to an impressive 40 meters. Participating in a training course here promises an outstanding experience.
Immerse yourself in a mesmerizing underwater world filled with a diverse array of marine life. Witness an abundance of captivating fish species including snappers, groupers, scorpionfish, schools of rockfish, scampi, yellowtails, turtles, and even the occasional sighting of sharks, rays, frogfish, and flatfish. Uniquely, this dive site is renowned for its thriving jawfish population, further enriching the appeal for diving enthusiasts.
Located near 中浦西海線, Funakoshi, Ainan, Minami-Uwa County, Ehime Prefecture, Japan, this dive site offers an environment similar to its surroundings, providing a seamless transition into the captivating underwater realm. Whether you choose to reach it by boat or opt for a thrilling swim, this dive site guarantees an extraordinary adventure for all divers.
Comprehensively optimized for divers and designed for unforgettable experiences, this remarkable dive site awaits your exploration.
Immerse yourself in a mesmerizing underwater world filled with a diverse array of marine life. Witness an abundance of captivating fish species including snappers, groupers, scorpionfish, schools of rockfish, scampi, yellowtails, turtles, and even the occasional sighting of sharks, rays, frogfish, and flatfish. Uniquely, this dive site is renowned for its thriving jawfish population, further enriching the appeal for diving enthusiasts.
Located near 中浦西海線, Funakoshi, Ainan, Minami-Uwa County, Ehime Prefecture, Japan, this dive site offers an environment similar to its surroundings, providing a seamless transition into the captivating underwater realm. Whether you choose to reach it by boat or opt for a thrilling swim, this dive site guarantees an extraordinary adventure for all divers.
Comprehensively optimized for divers and designed for unforgettable experiences, this remarkable dive site awaits your exploration.
Diving Conditions Score for Nyanko Rock
7
GoodGood diving conditions!
The score is based on a calculation of the current weather and sea conditions.
Dive Site Overview for Nyanko Rock
Experience Level
beginner
advanced
expert
Weather Conditions for Nyanko Rock
Wave Height
0.92m
Wind Speed
18 m/s
Water Temp
24.1°C
Visibility
27.9km
Cloud Cover
45%
Wave Period
4.35s
Air Temperature
22°C
Precipitation
0 mm
Detailed 7-Day Diving Forecast for Nyanko Rock
Alpha
Dive Score Chart for Nyanko Rock
Best time to dive: 11:00 with score 7.393367003367003/10. Water conditions: Waves 0.74m, Wind 4.6 m/s.Best night dive time: 3:00 with score 6.5908999999999995/10.
Chart showing hourly dive conditions including wave height, wind speed, water temperature, and visibility throughout the day.
Sunrise at Nyanko Rock: 06:00
Sunset at Nyanko Rock: 18:00
Optimal diving conditions at Nyanko Rock 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
11:00Score: 7.4/10
Waves: 0.74m (4.95s), Wind: 4.6 m/s
Best Night
3:00Score: 6.6/10
Waves: 0.94m, Wind: 20.5 m/s
Seasonal Analysis for Nyanko RockAlpha
Historical patterns and best seasons for diving at Nyanko Rock
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 Nyanko Rock
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 Nyanko Rock
January
Score: 8.6
February
Score: 8.4
December
Score: 8.4
Ideal Conditions for Nyanko Rock
Water Temp
27.2°C / 81.0°F
August
Visibility
13.4m / 44.0ft
November
Wave Height
1.7m / 5.6ft
October
Wave Period
8.0s
January
Seasonal Insights for Nyanko Rock
Nyanko Rock shows typical northern hemisphere patterns with August being the warmest month (27.2°C) and February the coldest (3.8°C). The calmest conditions typically occur in October with average wave heights of 1.7m and wave periods of 8.0s. The most comfortable wave conditions are in October 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 October to December, 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
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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