Alcyone, Cocos Island
Located off Cocos Island in Costa Rica, Alcyone is an impressive underwater mountain that offers a thrilling dive experience. With its strong to very strong currents, diving on the rope is a necessity here. The maximum depth of the site is 30 meters, making it ideal for advanced divers.
One of the highlights of Alcyone is the presence of large schools of hammerhead sharks, typically consisting of approximately 150 to 200 individuals. Dolphins and Galapagos sharks are also frequently encountered in the area. Additionally, the site is known for its abundance of big marble rays. With such diverse marine life, anything is possible at Alcyone.
Enhancing the overall experience is the good visibility of 17 meters, allowing divers to fully appreciate the underwater beauty. Whether you are an experienced or advanced diver, exploring this captivating dive site is always worth it.
Plan your dive trip to Alcyone and get ready for an exhilarating underwater adventure in the waters of Provincia Puntarenas, Costa Rica.
One of the highlights of Alcyone is the presence of large schools of hammerhead sharks, typically consisting of approximately 150 to 200 individuals. Dolphins and Galapagos sharks are also frequently encountered in the area. Additionally, the site is known for its abundance of big marble rays. With such diverse marine life, anything is possible at Alcyone.
Enhancing the overall experience is the good visibility of 17 meters, allowing divers to fully appreciate the underwater beauty. Whether you are an experienced or advanced diver, exploring this captivating dive site is always worth it.
Plan your dive trip to Alcyone and get ready for an exhilarating underwater adventure in the waters of Provincia Puntarenas, Costa Rica.
Diving Conditions Score for Alcyone, Cocos Island
7
GoodGood diving conditions!
The score is based on a calculation of the current weather and sea conditions.
Dive Site Overview for Alcyone, Cocos Island
Depth
28m
Visibility
17m
Experience Level
advanced
Weather Conditions for Alcyone, Cocos Island
Wave Height
1.3m
Wind Speed
5.6 m/s
Water Temp
29.7°C
Visibility
9.86km
Cloud Cover
100%
Wave Period
12.75s
Air Temperature
27.1°C
Precipitation
0.1 mm
Detailed 7-Day Diving Forecast for Alcyone, Cocos Island
Alpha
Dive Score Chart for Alcyone, Cocos Island
Best time to dive: 12:00 with score 7.0840522875817005/10. Water conditions: Waves 1.28m, Wind 3.5 m/s.Best night dive time: 1:00 with score 7.247533333333334/10.
Chart showing hourly dive conditions including wave height, wind speed, water temperature, and visibility throughout the day.
Sunrise at Alcyone, Cocos Island: 06:00
Sunset at Alcyone, Cocos Island: 18:00
Optimal diving conditions at Alcyone, Cocos Island 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
1:00Score: 7.2/10
Waves: 1.32m (12.8s), Wind: 3.8 m/s
Safest Overall
12:00Score: 7.1/10
Waves: 1.28m (12.75s), Wind: 3.5 m/s
Best Day
12:00Score: 7.1/10
Waves: 1.28m, Wind: 3.5 m/s
Seasonal Analysis for Alcyone, Cocos IslandAlpha
Historical patterns and best seasons for diving at Alcyone, Cocos Island
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 Alcyone, Cocos Island
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 Alcyone, Cocos Island
February
Score: 9.6
March
Score: 9.5
January
Score: 9.4
Ideal Conditions for Alcyone, Cocos Island
Water Temp
25.9°C / 78.6°F
May
Visibility
10.6m / 34.8ft
February
Wave Height
1.4m / 4.6ft
February
Wave Period
8.0s
January
Seasonal Insights for Alcyone, Cocos Island
Alcyone, Cocos Island shows typical northern hemisphere patterns with May being the warmest month (25.9°C) and December the coldest (21.3°C). The calmest conditions typically occur in February with average wave heights of 1.4m and wave periods of 8.0s. The most comfortable wave conditions are in February 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). October is usually the driest month with 1.5mm of precipitation. For beginners, the best time to visit would be during February to April, 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 18, 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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