Luminao Reef
Explore the vibrant marine life of Luminao Reef, located near Glass Breakwater in the Port of Guam, United States. This dive site offers an incredible array of reef fish, including schooling wrasses and butterfly fish. You may even encounter impressive pelagic species like tuna and barracuda during your dive. With excellent visibility reaching up to 18m and a maximum depth of 22m, Luminao Reef is suitable for divers of all levels, from beginners to advanced experts. Keep an eye out for magnificent turtles and graceful stingrays as you drift along in the crystal-clear waters of this renowned boat dive site.
Diving Conditions Score for Luminao Reef
6.6
Above AverageDecent conditions, proceed with caution.
The score is based on a calculation of the current weather and sea conditions.
Dive Site Overview for Luminao Reef
Depth
22m
Visibility
18m
Experience Level
beginner
advanced
expert
Weather Conditions for Luminao Reef
Wave Height
1.2m
Wind Speed
15.8 m/s
Water Temp
29.8°C
Visibility
2.68km
Cloud Cover
92%
Wave Period
5.7s
Air Temperature
27°C
Precipitation
0.5 mm
Detailed 7-Day Diving Forecast for Luminao Reef
Alpha
Dive Score Chart for Luminao Reef
Best time to dive: 14:00 with score 7.0904/10. Water conditions: Waves 1.08m, Wind 19.3 m/s.Best night dive time: 20:00 with score 6.6754/10.
Chart showing hourly dive conditions including wave height, wind speed, water temperature, and visibility throughout the day.
Sunrise at Luminao Reef: 06:00
Sunset at Luminao Reef: 18:00
Optimal diving conditions at Luminao Reef 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
14:00Score: 7.1/10
Waves: 1.08m (5.65s), Wind: 19.3 m/s
Safest Overall
17:00Score: 7.1/10
Waves: 1.04m (5.65s), Wind: 18.9 m/s
Best Night
20:00Score: 6.7/10
Waves: 0.98m, Wind: 14.4 m/s
Seasonal Analysis for Luminao ReefAlpha
Historical patterns and best seasons for diving at Luminao Reef
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 Luminao Reef
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 Luminao Reef
January
Score: 9.5
February
Score: 9.4
November
Score: 9.4
Ideal Conditions for Luminao Reef
Water Temp
27.6°C / 81.7°F
May
Visibility
11.2m / 36.7ft
November
Wave Height
1.4m / 4.6ft
September
Wave Period
8.0s
January
Seasonal Insights for Luminao Reef
Luminao Reef shows typical northern hemisphere patterns with May being the warmest month (27.6°C) and January the coldest (22.7°C). The calmest conditions typically occur in September with average wave heights of 1.4m 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 1.0mm 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 19, 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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