Koino Ura
Divers at Koino Ura can delight in encounters with various marine species, including scorpionfish, stingrays, mackerel, snappers, sunfish, flatfish, yellowfin reef sharks, and stingrays. The winter to spring period is particularly fascinating as it presents an opportunity to witness the diverse array of nudibranchs.
The abundance of macro-organisms, such as nudibranchs and moss phalaropes, makes Koino Ura a favorite spot for underwater photographers and fish enthusiasts. Explorers may also chance upon the enchanting sight of sea snails and sea horses. During the spring and early summer months, encounters with stingrays are frequent, with occasional sightings of chimaeras and spiny stingrays.
With a maximum depth of 9 meters and a visibility of 7 meters, Koino Ura provides an ideal setting for beginners to hone their diving skills. Whether you are a novice or an experienced diver, this captivating dive site promises an unforgettable underwater adventure. Discover the wonders of Koino Ura and create lasting memories in this stunning locale within the Fukutsu City, Fukuoka Prefecture, Japan.
Diving Conditions Score for Koino Ura
Decent conditions, proceed with caution.
The score is based on a calculation of the current weather and sea conditions.
Dive Site Overview for Koino Ura
Depth
9m
Visibility
7m
Experience Level
Weather Conditions for Koino Ura
Wave Height
1.18m
Wind Speed
20.6 m/s
Water Temp
25.1°C
Visibility
6.9km
Cloud Cover
38%
Wave Period
8.35s
Air Temperature
23.1°C
Precipitation
0 mm
Dive Score Chart for Koino Ura
Best time to dive: 6:00 with score 7.172443902439024/10. Water conditions: Waves 1.16m, Wind 20.3 m/s.Best night dive time: 4:00 with score 6.706569696969697/10.
Chart showing hourly dive conditions including wave height, wind speed, water temperature, and visibility throughout the day.
Optimal diving conditions at Koino Ura 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: 7.2/10
Waves: 1.16m (8.2s), Wind: 20.3 m/s
Score: 6.7/10
Waves: 1.04m, Wind: 19.2 m/s
Seasonal Analysis for Koino UraAlpha
Historical patterns and best seasons for diving at Koino Ura
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 Koino Ura
Winter
Winter offers the best overall diving conditions with calmer seas and better visibility, despite cooler temperatures.
Best Months for Koino Ura
Ideal Conditions for Koino Ura
Water Temp
26.8°C / 80.2°F
July
Visibility
15.4m / 50.5ft
November
Wave Height
1.0m / 3.3ft
January
Wave Period
8.0s
January
Seasonal Insights for Koino Ura
Koino Ura shows typical northern hemisphere patterns with July being the warmest month (26.8°C) and February the coldest (2.5°C). The calmest conditions typically occur in January with average wave heights of 1.0m 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