YO-257 (Wreck)
The YO257, a WWII Navy shipwreck, is a popular dive site in Honolulu, situated near the San Pedro wreck. It rests upright at a depth of 95 feet, approximately a mile off the coast of Waikiki. This dive is suitable for advanced divers who are qualified to penetrate the wreck through various cut-outs strategically placed throughout. Dive enthusiasts can expect to encounter an array of marine life including spotted eels, turtles, and occasionally white tip reef sharks. With a maximum depth of 29m and a visibility of 22m, this exciting wreck dive promises an unforgettable experience. Discover this amazing dive site in Waikiki, Honolulu, Honolulu County, Hawaii, 96815-2830, United States.
Diving Conditions Score for YO-257 (Wreck)
7.1
GoodGood diving conditions!
The score is based on a calculation of the current weather and sea conditions.
Dive Site Overview for YO-257 (Wreck)
Depth
29m
Visibility
22m
Experience Level
advanced
Weather Conditions for YO-257 (Wreck)
Wave Height
1.44m
Wind Speed
25.9 m/s
Water Temp
26.9°C
Visibility
45.92km
Cloud Cover
20%
Wave Period
8.75s
Air Temperature
28.1°C
Precipitation
0 mm
Detailed 7-Day Diving Forecast for YO-257 (Wreck)
Alpha
Dive Score Chart for YO-257 (Wreck)
Best time to dive: 6:00 with score 7.0654534686971235/10. Water conditions: Waves 1.4m, Wind 21 m/s.Best night dive time: 3:00 with score 6.676547154471545/10.
Chart showing hourly dive conditions including wave height, wind speed, water temperature, and visibility throughout the day.
Sunrise at YO-257 (Wreck): 06:00
Sunset at YO-257 (Wreck): 18:00
Optimal diving conditions at YO-257 (Wreck) 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
6:00Score: 7.1/10
Waves: 1.4m (9.85s), Wind: 21 m/s
Safest Overall
15:00Score: 7.1/10
Waves: 1.38m (9.55s), Wind: 18.9 m/s
Best Night
3:00Score: 6.7/10
Waves: 1.36m, Wind: 22.3 m/s
Seasonal Analysis for YO-257 (Wreck)Alpha
Historical patterns and best seasons for diving at YO-257 (Wreck)
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 YO-257 (Wreck)
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 YO-257 (Wreck)
January
Score: 9.7
February
Score: 9.4
March
Score: 9.1
Ideal Conditions for YO-257 (Wreck)
Water Temp
25.4°C / 77.7°F
June
Visibility
15.0m / 49.2ft
January
Wave Height
0.9m / 3.0ft
January
Wave Period
8.0s
January
Seasonal Insights for YO-257 (Wreck)
YO-257 (Wreck) shows typical northern hemisphere patterns with June being the warmest month (25.4°C) and January the coldest (19.1°C). The calmest conditions typically occur in January with average wave heights of 0.9m 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). December is usually the driest month with 0.4mm 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 - Jul 7, 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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