Napoleon Cut
Located in the crystal-clear waters of Guam, the Northern Reef offers an exhilarating diving experience for advanced divers. This renowned dive site boasts a sloping wall adorned with mesmerizing rock formations, overhangs, and sand channels. Dive into the depths ranging from 10 to 130 feet to encounter a diverse marine life including small sharks, barracudas, and the occasional Napoleon Wrasse, which the reef is named after.
With excellent visibility reaching up to 27 meters and a maximum depth of 26 meters, this underwater paradise is best explored as a drift dive. Prepare to be surrounded by abundant reef fish, graceful turtles, and elusive octopuses. At greater depths, you'll discover the enchanting sight of beautiful whip corals swaying elegantly in the currents.
Accessible only by boat, this hidden gem offers a true escape into the underwater wonders. Soak in the breathtaking sights and immerse yourself in the vibrant marine ecosystem of Guam's Northern Reef.
With excellent visibility reaching up to 27 meters and a maximum depth of 26 meters, this underwater paradise is best explored as a drift dive. Prepare to be surrounded by abundant reef fish, graceful turtles, and elusive octopuses. At greater depths, you'll discover the enchanting sight of beautiful whip corals swaying elegantly in the currents.
Accessible only by boat, this hidden gem offers a true escape into the underwater wonders. Soak in the breathtaking sights and immerse yourself in the vibrant marine ecosystem of Guam's Northern Reef.
Diving Conditions Score for Napoleon Cut
7.6
GoodGood diving conditions!
The score is based on a calculation of the current weather and sea conditions.
Dive Site Overview for Napoleon Cut
Depth
26m
Visibility
27m
Experience Level
advanced
Weather Conditions for Napoleon Cut
Wave Height
1.12m
Wind Speed
5 m/s
Water Temp
30.2°C
Visibility
15.6km
Cloud Cover
28%
Wave Period
6.95s
Air Temperature
29.8°C
Precipitation
0.1 mm
Detailed 7-Day Diving Forecast for Napoleon Cut
Alpha
Dive Score Chart for Napoleon Cut
Best time to dive: 8:00 with score 7.844766666666666/10. Water conditions: Waves 1.12m, Wind 5 m/s.Best night dive time: 21:00 with score 7.32516711409396/10.
Chart showing hourly dive conditions including wave height, wind speed, water temperature, and visibility throughout the day.
Sunrise at Napoleon Cut: 06:00
Sunset at Napoleon Cut: 18:00
Optimal diving conditions at Napoleon Cut 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
8:00Score: 7.8/10
Waves: 1.12m (6.95s), Wind: 5 m/s
Best Night
21:00Score: 7.3/10
Waves: 0.92m, Wind: 9.7 m/s
Seasonal Analysis for Napoleon CutAlpha
Historical patterns and best seasons for diving at Napoleon Cut
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 Napoleon Cut
Winter
Avg. Score: 9.3/10
Winter offers the best overall diving conditions with calmer seas and better visibility, despite cooler temperatures.
Best Months for Napoleon Cut
February
Score: 9.4
January
Score: 9.3
March
Score: 9.2
Ideal Conditions for Napoleon Cut
Water Temp
27.4°C / 81.3°F
May
Visibility
10.5m / 34.4ft
May
Wave Height
1.6m / 5.2ft
September
Wave Period
8.0s
January
Seasonal Insights for Napoleon Cut
Napoleon Cut shows typical northern hemisphere patterns with June 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 1.6m 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 1.1mm 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.
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