Bajo Negro, Black Rock
What sets Black Rock apart is its element of surprise. At first, the water may seem tranquil, but then suddenly, divers find themselves encountering a magnificent sailfish or a mesmerizing school of barracuda swimming alongside them. However, it's important to note that the current at Black Rock can be strong at times.
The dive site itself is a haven of natural wonders, boasting an abundance of beautiful sponges, corals, and an array of marine life. Divers can expect to encounter eagle rays, devil rays, mantas, and a myriad of colorful fish. This makes Black Rock one of the finest dive sites in the area.
While exploring the underwater realm at Black Rock, divers may also come across fascinating creatures such as moray eels, schools of barracuda, white tip sharks, nurse sharks, and more. This dive site truly offers divers an opportunity to immerse themselves in a magnificent underwater world.
However, it's worth mentioning that Black Rock can be affected by strong currents and surge, adding an element of excitement and adventure to the diving experience. With a maximum depth of 22m and a visibility of 11m, divers can fully appreciate the beauty and diversity that Black Rock has to offer.
For divers seeking a remarkable diving adventure in Costa Rica, Black Rock is the cherry on top of the cake after an exhilarating dive at Big Scare. Don't miss the chance to get lost in the enchanting school of fish and encounter a wide variety of captivating marine life.
Diving Conditions Score for Bajo Negro, Black Rock
Decent conditions, proceed with caution.
The score is based on a calculation of the current weather and sea conditions.
Dive Site Overview for Bajo Negro, Black Rock
Depth
22m
Visibility
11m
Experience Level
Weather Conditions for Bajo Negro, Black Rock
Wave Height
1.02m
Wind Speed
14 m/s
Water Temp
30°C
Visibility
10.28km
Cloud Cover
99%
Wave Period
12.75s
Air Temperature
25°C
Precipitation
1.3 mm
Dive Score Chart for Bajo Negro, Black Rock
Best time to dive: 17:00 with score 7.573312903225807/10. Water conditions: Waves 1.02m, Wind 21.4 m/s.Best night dive time: 4:00 with score 7.201037467700259/10.
Chart showing hourly dive conditions including wave height, wind speed, water temperature, and visibility throughout the day.
Optimal diving conditions at Bajo Negro, Black Rock 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: 7.6/10
Waves: 1.02m (12.4s), Wind: 21.4 m/s
Score: 7.5/10
Waves: 1.02m (12.9s), Wind: 8.6 m/s
Score: 7.2/10
Waves: 1m, Wind: 5.9 m/s
Seasonal Analysis for Bajo Negro, Black RockAlpha
Historical patterns and best seasons for diving at Bajo Negro, Black Rock
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 Bajo Negro, Black Rock
Winter
Winter offers the best overall diving conditions with calmer seas and better visibility, despite cooler temperatures.
Best Months for Bajo Negro, Black Rock
Ideal Conditions for Bajo Negro, Black Rock
Water Temp
27.0°C / 80.6°F
May
Visibility
11.1m / 36.4ft
December
Wave Height
1.7m / 5.6ft
September
Wave Period
8.0s
January
Seasonal Insights for Bajo Negro, Black Rock
Bajo Negro, Black Rock shows typical northern hemisphere patterns with April being the warmest month (27.8°C) and November the coldest (22.3°C). The calmest conditions typically occur in September with average wave heights of 1.7m 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). January is usually the driest month with 0.0mm 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 22, 2026