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Costão da Jaconema - Deck Pous Nautilus (Ilha Grd RJ)

Welcome to our dive site, located along the classic rocky coastline of Brazil. This picturesque underwater world offers a range of depths, from a minimum of 4 meters to a maximum of 15 meters, making it accessible to both beginner and advanced divers.

One of the highlights of this dive site is the incredible night dive experience. As the sun sets, the marine life awakens, providing an enchanting encounter beneath the surface. Be prepared to witness a diverse array of creatures, including coiós, friars, octopuses, squids, rays, and turtles.

For those looking to explore further, a visit to the renowned creation of Beijupirás is a must. Accessible from the Nautilus Inn, divers can expect to be captivated by the natural wonders that await them.

With a visibility of 7 meters and a maximum depth of 9 meters, this dive site offers an optimal underwater experience for enthusiasts of all levels. Whether you're a beginner or a seasoned diver, you'll find yourself immersed in the beauty and tranquility of the underwater world.

Located in the stunning region of Angra dos Reis, in the Rio de Janeiro state of Brazil, this dive site is conveniently accessible. Its close proximity to T5, Matariz, and the surrounding areas makes it a popular choice for divers seeking a captivating adventure in the Southeast Region.

Join us at this remarkable dive site and discover the wonders that lie beneath the surface. Experience the thrill of diving and witness the vibrant marine life that calls this underwater ecosystem home.

Diving Conditions Score for Costão da Jaconema - Deck Pous Nautilus (Ilha Grd RJ)

5.7
Average

Average conditions, be alert.
The score is based on a calculation of the current weather and sea conditions.

Dive Site Overview for Costão da Jaconema - Deck Pous Nautilus (Ilha Grd RJ)

Depth

9m

Visibility

7m

Experience Level

beginner

Weather Conditions for Costão da Jaconema - Deck Pous Nautilus (Ilha Grd RJ)

Wave Height

1.32m

Wind Speed

7.6 m/s

Water Temp

22.9°C

Visibility

2.94km

Cloud Cover

100%

Wave Period

7.8s

Air Temperature

19.9°C

Precipitation

0.6 mm

Detailed 7-Day Diving Forecast for Costão da Jaconema - Deck Pous Nautilus (Ilha Grd RJ)
Alpha

Dive Score Chart for Costão da Jaconema - Deck Pous Nautilus (Ilha Grd RJ)

Best time to dive: 15:00 with score 5.984999999999999/10. Water conditions: Waves 1.3m, Wind 10.5 m/s.Best night dive time: 23:00 with score 6.227433333333333/10.

Chart showing hourly dive conditions including wave height, wind speed, water temperature, and visibility throughout the day.

Sunrise at Costão da Jaconema - Deck Pous Nautilus (Ilha Grd RJ): 06:00
Sunset at Costão da Jaconema - Deck Pous Nautilus (Ilha Grd RJ): 18:00

Optimal diving conditions at Costão da Jaconema - Deck Pous Nautilus (Ilha Grd RJ) 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
23:00

Score: 6.2/10
Waves: 1.22m (7.8s), Wind: 7.8 m/s

🌞
Safest Overall
15:00

Score: 6.0/10
Waves: 1.3m (7.8s), Wind: 10.5 m/s

🌞
Best Day
15:00

Score: 6.0/10
Waves: 1.3m, Wind: 10.5 m/s

Seasonal Analysis for Costão da Jaconema - Deck Pous Nautilus (Ilha Grd RJ)
Alpha

Historical patterns and best seasons for diving at Costão da Jaconema - Deck Pous Nautilus (Ilha Grd RJ)

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 Costão da Jaconema - Deck Pous Nautilus (Ilha Grd RJ)

Summer

Avg. Score: 9.3/10

Summer offers the warmest water temperatures and generally favorable conditions for all levels of divers.

Best Months for Costão da Jaconema - Deck Pous Nautilus (Ilha Grd RJ)

July
Score: 9.6
May
Score: 9.2
June
Score: 9.1

Ideal Conditions for Costão da Jaconema - Deck Pous Nautilus (Ilha Grd RJ)

Water Temp

Thermometer Emoji

24.5°C / 76.1°F

March

Visibility

Telescope Emoji

15.7m / 51.5ft

January

Wave Height

Wave Emoji

0.6m / 2.0ft

January

Wave Period

Wave Emoji

8.0s

January

Seasonal Insights for Costão da Jaconema - Deck Pous Nautilus (Ilha Grd RJ)

Costão da Jaconema - Deck Pous Nautilus (Ilha Grd RJ) follows southern hemisphere patterns with March being the warmest month (24.5°C) and September the coldest (18.3°C). The calmest conditions typically occur in January with average wave heights of 0.6m 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). March is usually the driest month with 0.0mm 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.

Scoring Legend:
9-10 (Excellent)
7-8 (Good)
5-6 (Average)
3-4 (Poor)
1-2 (Dangerous)

Last updated: 1 min. ago - Jun 16, 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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