Lehau
Diving at Lehua Crater offers breathtaking underwater erosional sea caves and arches. This unique dive site is the only place in the world where you have an excellent opportunity to swim with the highly endangered Hawaiian monk seal, a species found exclusively in the waters of the United States. Marvel at the diverse marine life, from the typical Hawaiian reef fish to the elusive whitetip reef sharks lurking among the rocks.
With a remarkable visibility of 29 meters and a maximum depth of 21 meters, Lehua Crater is an ideal spot for divers of all levels, including beginners. Located near Lehua Landing in Kauaʻi County, Hawaii, United States, this dive site offers an unforgettable underwater experience.
Discover the wonders of the ocean at Lehua Crater, where adventure and excitement await.
With a remarkable visibility of 29 meters and a maximum depth of 21 meters, Lehua Crater is an ideal spot for divers of all levels, including beginners. Located near Lehua Landing in Kauaʻi County, Hawaii, United States, this dive site offers an unforgettable underwater experience.
Discover the wonders of the ocean at Lehua Crater, where adventure and excitement await.
Diving Conditions Score for Lehau
7.6
GoodGood diving conditions!
The score is based on a calculation of the current weather and sea conditions.
Dive Site Overview for Lehau
Depth
21m
Visibility
29m
Experience Level
beginner
Weather Conditions for Lehau
Wave Height
1.5m
Wind Speed
18.4 m/s
Water Temp
25.9°C
Visibility
45.12km
Cloud Cover
92%
Wave Period
7.2s
Air Temperature
25.3°C
Precipitation
0 mm
Detailed 7-Day Diving Forecast for Lehau
Alpha
Dive Score Chart for Lehau
Best time to dive: 15:00 with score 7.864333333333334/10. Water conditions: Waves 1.28m, Wind 0.2 m/s.Best night dive time: 20:00 with score 6.866133333333333/10.
Chart showing hourly dive conditions including wave height, wind speed, water temperature, and visibility throughout the day.
Sunrise at Lehau : 06:00
Sunset at Lehau : 18:00
Optimal diving conditions at Lehau 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
15:00Score: 7.9/10
Waves: 1.28m (7.8s), Wind: 0.2 m/s
Best Night
20:00Score: 6.9/10
Waves: 1.24m, Wind: 5.6 m/s
Seasonal Analysis for Lehau Alpha
Historical patterns and best seasons for diving at Lehau
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 Lehau
Winter
Avg. Score: 9.2/10
Winter offers the best overall diving conditions with calmer seas and better visibility, despite cooler temperatures.
Best Months for Lehau
January
Score: 9.3
February
Score: 9.2
March
Score: 9.0
Ideal Conditions for Lehau
Water Temp
25.7°C / 78.3°F
July
Visibility
12.0m / 39.4ft
September
Wave Height
1.4m / 4.6ft
January
Wave Period
8.0s
January
Seasonal Insights for Lehau
Lehau shows typical northern hemisphere patterns with July being the warmest month (25.7°C) and January the coldest (19.3°C). The calmest conditions typically occur in January with average wave heights of 1.4m 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). July is usually the driest month with 0.2mm 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 - Jun 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.
4 Dive sites near Lehau in
Got feedback?
Help us improve this dive site by giving us feedback.