Koganezaki
Located in Koganezaki Park, this dive site in Japan offers easy entry and exit for divers due to the convenient ramps and handrails. Depending on the season, visitors can immerse themselves in the beauty of various flowers surrounding the area. Once underwater, divers will encounter a diverse range of marine life. With depths ranging from just a few meters to a maximum of 14 meters, both sandy and rocky areas provide a rich biota. Popular macro-organisms found here include nudibranchs, sea tigers, red-headed gobies, tigerfish, and bear frogfish. The sandy soil features landing spots such as artificially submerged rocks connected by ropes, ensuring easy navigation and efficient diving. A beloved spot for macrobiology enthusiasts, "Koganezaki Hall" is a notable cave at this site. From summer to autumn, divers, including beginners and advanced levels, can witness the impressive sight of large schools of small fish immediately upon entering the water. Experience the wonders of this unparalleled dive site conveniently located near Kamo Diving, along national route 136, Nishiizu, Kamo County, Shizuoka Prefecture, Japan.
Diving Conditions Score for Koganezaki
6.4
Above AverageDecent conditions, proceed with caution.
The score is based on a calculation of the current weather and sea conditions.
Dive Site Overview for Koganezaki
Depth
14m
Visibility
10m
Experience Level
beginner
advanced
Weather Conditions for Koganezaki
Wave Height
1.14m
Wind Speed
8.7 m/s
Water Temp
22.9°C
Visibility
660m
Cloud Cover
88%
Wave Period
6.4s
Air Temperature
23.8°C
Precipitation
0.4 mm
Detailed 7-Day Diving Forecast for Koganezaki
Alpha
Dive Score Chart for Koganezaki
Best time to dive: 15:00 with score 6.370933333333333/10. Water conditions: Waves 1.7m, Wind 7.3 m/s.Best night dive time: 21:00 with score 6.502400000000001/10.
Chart showing hourly dive conditions including wave height, wind speed, water temperature, and visibility throughout the day.
Sunrise at Koganezaki: 06:00
Sunset at Koganezaki: 18:00
Optimal diving conditions at Koganezaki 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
21:00Score: 6.5/10
Waves: 1.22m (6.5s), Wind: 4.6 m/s
Safest Overall
15:00Score: 6.4/10
Waves: 1.7m (6.25s), Wind: 7.3 m/s
Best Day
15:00Score: 6.4/10
Waves: 1.7m, Wind: 7.3 m/s
Seasonal Analysis for KoganezakiAlpha
Historical patterns and best seasons for diving at Koganezaki
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 Koganezaki
Winter
Avg. Score: 10.0/10
Winter offers the best overall diving conditions with calmer seas and better visibility, despite cooler temperatures.
Best Months for Koganezaki
January
Score: 10.0
February
Score: 10.0
March
Score: 10.0
Ideal Conditions for Koganezaki
Water Temp
23.5°C / 74.3°F
June
Visibility
20.1m / 65.9ft
October
Wave Height
0.2m / 0.7ft
January
Wave Period
8.0s
January
Seasonal Insights for Koganezaki
Koganezaki shows typical northern hemisphere patterns with June being the warmest month (23.5°C) and December the coldest (19.5°C). The calmest conditions typically occur in January with average wave heights of 0.2m 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 21, 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.
16 Dive sites near Koganezaki in
Got feedback?
Help us improve this dive site by giving us feedback.