Umatac Zero (Wreck)
Prepare to be awe-inspired by the vibrant marine life that frequents this site. Encounter schools of captivating small Parrotfish and wrasse's gracefully swimming through the waters. Spotting turtles is a common occurrence on these dives, with occasional sightings of rays and reef sharks adding an extra element of excitement.
With an impressive visibility of 12m and a maximum depth reaching 22m, this extraordinary dive site is suitable for divers of all levels, including beginners. Located near Fort Santo Angel in Umatac Municipality, Guam, United States, this captivating destination promises a memorable dive experience that will leave you in awe.
Diving Conditions Score for Umatac Zero (Wreck)
Decent conditions, proceed with caution.
The score is based on a calculation of the current weather and sea conditions.
Dive Site Overview for Umatac Zero (Wreck)
Depth
22m
Visibility
12m
Experience Level
Weather Conditions for Umatac Zero (Wreck)
Wave Height
1.18m
Wind Speed
18.2 m/s
Water Temp
29.9°C
Visibility
40.18km
Cloud Cover
41%
Wave Period
7.15s
Air Temperature
31.1°C
Precipitation
0 mm
Dive Score Chart for Umatac Zero (Wreck)
Best time to dive: 14:00 with score 7.213469281045752/10. Water conditions: Waves 1.14m, Wind 5.7 m/s.Best night dive time: 20:00 with score 6.51055238095238/10.
Chart showing hourly dive conditions including wave height, wind speed, water temperature, and visibility throughout the day.
Optimal diving conditions at Umatac Zero (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.
Score: 7.2/10
Waves: 1.14m (7.65s), Wind: 5.7 m/s
Score: 6.5/10
Waves: 1.1m, Wind: 9 m/s
Seasonal Analysis for Umatac Zero (Wreck)Alpha
Historical patterns and best seasons for diving at Umatac Zero (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 Umatac Zero (Wreck)
Winter
Winter offers the best overall diving conditions with calmer seas and better visibility, despite cooler temperatures.
Best Months for Umatac Zero (Wreck)
Ideal Conditions for Umatac Zero (Wreck)
Water Temp
27.2°C / 81.0°F
May
Visibility
11.2m / 36.7ft
November
Wave Height
1.6m / 5.2ft
September
Wave Period
8.0s
January
Seasonal Insights for Umatac Zero (Wreck)
Umatac Zero (Wreck) shows typical northern hemisphere patterns with June being the warmest month (27.3°C) and January the coldest (22.5°C). The calmest conditions typically occur in September with average wave heights of 1.6m 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). February is usually the driest month with 0.7mm 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