Nagato
Nagato, a super-dreadnought battleship constructed for the Imperial Japanese Navy (IJN), is a renowned dive site located in the Marshall Islands near Kili. This historical wreck, measuring 201.17 meters in length and submerged at a depth of 33.5 meters, offers a captivating dive experience, especially suited for advanced divers. Despite its upside-down position, the most striking feature of Nagato is the four propellers visible during the dive. This site, part of the nuclear weapon test operation known as Operation Crossroads in 1946, presents an exceptional opportunity for enthusiasts of Technical Wreck diving. Enhance your underwater exploration at Nagato, where visibility and maximum depth coincide, and enjoy the rich diving adventure it has to offer.
Diving Conditions Score for Nagato
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 Nagato
Experience Level
advanced
Weather Conditions for Nagato
Wave Height
1.54m
Wind Speed
23.9 m/s
Water Temp
29.3°C
Visibility
8.9km
Cloud Cover
97%
Wave Period
6.3s
Air Temperature
27.5°C
Precipitation
0.4 mm
Detailed 7-Day Diving Forecast for Nagato
Alpha
Dive Score Chart for Nagato
Best time to dive: 13:00 with score 6.4489/10. Water conditions: Waves 1.5m, Wind 20.5 m/s.Best night dive time: 18:00 with score 5.8460333333333345/10.
Chart showing hourly dive conditions including wave height, wind speed, water temperature, and visibility throughout the day.
Sunrise at Nagato: 06:00
Sunset at Nagato: 18:00
Optimal diving conditions at Nagato 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
13:00Score: 6.4/10
Waves: 1.5m (6.6s), Wind: 20.5 m/s
Safest Overall
15:00Score: 6.4/10
Waves: 1.46m (6.65s), Wind: 25.9 m/s
Best Night
18:00Score: 5.8/10
Waves: 1.54m, Wind: 29.7 m/s
Seasonal Analysis for NagatoAlpha
Historical patterns and best seasons for diving at Nagato
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 Nagato
Winter
Avg. Score: 9.4/10
Winter offers the best overall diving conditions with calmer seas and better visibility, despite cooler temperatures.
Best Months for Nagato
January
Score: 9.5
February
Score: 9.4
December
Score: 9.4
Ideal Conditions for Nagato
Water Temp
27.0°C / 80.6°F
May
Visibility
10.7m / 35.1ft
December
Wave Height
2.7m / 8.9ft
September
Wave Period
8.0s
January
Seasonal Insights for Nagato
Nagato shows typical northern hemisphere patterns with June being the warmest month (27.4°C) and January the coldest (23.0°C). The calmest conditions typically occur in September with average wave heights of 2.7m and wave periods of 8.0s. The most comfortable wave conditions are in September 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 September to November, 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 23, 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.
2 Dive sites near Nagato in
Got feedback?
Help us improve this dive site by giving us feedback.