Scuba Diving at Trinta Réis

Diving atTrinta Réis (Brazil)

Descending at Trinta Réis immediately guides divers into a distinctive underwater landscape, making it a compelling spot in Fernando de Noronha. This small island, situated in the Outside area, presents a dive experience defined by its unique geological features. Expect a maximal depth of 22 meters (72 ft) as the primary exploration limit, offering a comprehensive recreational profile. A prominent highlight of the dive sequence involves navigating a dramatic canyon, seamlessly carved by two significant rocky walls.

As evening covers Trinta Réis, the local air temperature is measured at 27.5°C. The current wave height at the surface is recorded at 1.5 m. These late-day readings characterize the surface conditions for the night.

Dive Site Location & Key Facts

Everything you need to know about this dive site.

Max Depth--
Entry Type--
Water Type--
Dive Types
DriftReef

Dive Site Overview

Trinta Réis presents a dynamic underwater environment, characterized by a small island formation fronting Abreus Cove. Divers can explore this area down to a maximum depth of 22 meters, a profile highly accessible for a wide range of certified individuals looking for a rewarding recreational experience.

Most notably, a striking canyon formed by two impressive rocky walls defines a primary passage through the site; divers often traverse this natural formation during their exploration, experiencing a unique sense of scale. This structural element provides both a visually engaging route and consistent shelter for various marine species, shaping the overall dive experience significantly. Beyond the primary canyon, shallower sections transition into vibrant reef patches, offering additional exploration opportunities.

While regional visibility in Fernando de Noronha can range widely, conditions here are often favorable, occasionally extending to 30-50 meters (100-164 ft) in calmer periods. Such clarity enhances appreciation of the site's distinctive geological formations and the vibrant life inhabiting its rocky crevices and open areas, making every turn a discovery and highlighting the site's diverse appeal.

Trinta Réis

Conditions are Good

7/10
Confidence: 8/10
Indicates meteorological model agreement and data availability.

Best Dive Window

Optimal conditions expected

06:12
18:45
H: 10:45
L: 16:20
Air / Sea Temp
28° / 29°
Wave Height
1.5 m
Wind Speed
23 km/h E
Rain Chance
50%

Current conditions near Trinta Réis show 28° air, 29° sea temperature, 1.5 m waves, and 23 km/h wind. Forecast data is refreshed regularly to ensure accuracy.

Radius: ~12km
Updated: Jun 10, 2026, 22:27 local time
MARINE: OPEN-METEOWEATHER: YR.NO

Best Time to Dive

Planning a dive at Trinta Réis is best aligned with periods offering optimal underwater visibility and calmer sea states. The months from November through June generally present more favorable conditions, consistently earning a 'Moderate' dive score of 5 or 6. During this timeframe, air temperatures remain comfortably warm, averaging between 26.5°C and 27.5°C (80-82°F), with rainfall typically minimal, ranging from 0.3 mm to 5.6 mm. Conversely, July through October are marked by 'Poor' dive scores, higher wave heights around 2.2 meters (7.2 ft), and stronger winds often exceeding 30 km/h (19 mph). These conditions can significantly reduce visibility and increase surface chop. Therefore, aiming for the late autumn to early summer window enhances the likelihood of experiencing the site's clear waters and iconic canyon passage.

PEAK SEASON SCORE

58/100
Moderate

Scores combine air & water temps, waves, wind & rainfall for overall conditions.


BEST MONTHS TO DIVE

JAN
FEB
DEC
DIVE SCORE
(0–100)
59
JAN
58
FEB
55
MAR
52
APR
50
MAY
45
JUN
45
JUL
45
AUG
45
SEP
45
OCT
55
NOV
57
DEC
AIR TEMP (°C)
27
27
27
28
28
27
27
26
26
26
27
27
WAVES (M)
1.8
1.7
1.7
1.8
2.0
2.1
2.2
2.2
2.2
2.1
1.9
1.8
WIND (KM/H)
27
25
23
24
28
30
33
33
35
33
31
30
RAIN (MM)
1.3
5.5
10.9
12.2
5.6
2.5
1.2
0.7
0.7
0.5
0.3
1.0
DIVE SCORE GUIDE (0–100)
Excellent (90–100)
Very Good (80–89)
Good (70–79)
Moderate (50–69)
Poor (30–49)
Not Recommended (0–29)

Monthly records compiled from satellite and marine observation nodes over the last 3 years. Data provided by Open-Meteo and MET Norway.

Dive Experience & Conditions

Exploring the depth profile at Trinta Réis offers a manageable recreational dive experience, reaching down to 22 meters (72 ft). This depth range is suitable for open water certified divers, though some sections may appeal more to those comfortable with slightly deeper excursions. Within the canyon, the environment shifts, providing unique vantage points and potential shelter from external currents. Conditions, particularly currents, can vary; as an 'Outside area' site, Trinta Réis may present moderate currents, especially through constricted passages or during tidal shifts. Diver navigation through the prominent canyon formed by two rocky walls requires attentiveness, though it rarely poses significant challenge. The site's rock formations contribute to a varied terrain, influencing water movement and marine life patterns.

Dive Difficulty & Safety Guidelines

While specific hazards at Trinta Réis are not consistently reported, divers should always approach the site with standard safety protocols. The potential for moderate currents, characteristic of many 'Outside area' sites in the region, suggests that drift diving techniques may be employed or become necessary. Proper buoyancy control is crucial, particularly when navigating the narrow passages of the site's distinctive canyon to avoid contact with rock walls or marine life. Always dive within your certification limits and consider the prevailing conditions, including wave height and wind speed, which can impact boat transfers and surface conditions. Engaging with local dive operators ensures up-to-date information on daily site conditions and provides essential logistical support.

Recommended Equipment

Current and surface separation risk. Local briefing strongly recommended.

  • Dive Computer
  • DSMB
  • Reel / Spool

This gear list is based on verified equipment signals for Trinta Réis, Brazil. Always confirm final gear choices with your dive operator, guide, or liveaboard.

Recommended Dive Suit

2-3mm shorty or light wetsuit is widely used for recreational dives in waters of this temperature. A hood or vest is suggested for sensitive divers due to surface winds. Those diving at Trinta Réis today will likely encounter water temperatures in the region of 29°C (83°F). Surface air temperatures are resting at 28°C (82°F).

Short-term weather patterns suggest stable conditions for divers visiting the area.

Water temperatures can occasionally shift throughout the day depending on currents and depth layers.

Trinta Réis conditions last reviewed: 22:27 local time (UTC-2), Jun 10, 2026

Due to technical issues with our weather providers, data hasn't been fetched for over 48 hours. The data above reflects the conditions at the time of the last successful fetch.

Emergency & Medical Support

Essential information to help you plan your dive trip to Trinta Réis.

Hyperbaric Chamber

Hyperbaric chambers are a critical part of dive safety infrastructure. Availability varies significantly by region, and not all dive areas have immediate access.

Before diving, it's recommended to:

  • confirm nearest medical facilities
  • check emergency procedures with local dive operators
  • ensure dive insurance covers evacuation if required
24/7 Available

Divers Alert Network

Diving emergency assistance available through DAN World.

+1-919-684-9111
  • 24/7 emergency hotline
  • Diving medical assistance
  • Evacuation coordination
View official DAN emergency contacts

Emergency contacts are provided for reference. Always verify local emergency services before diving.

Marine Life at Trinta Réis

Focused on the vibrant marine life, Trinta Réis offers divers opportunities to encounter a variety of species. The canyon structure, formed by rocky walls, provides shelter and foraging grounds for diverse aquatic inhabitants. Observing sharks and rays is a common occurrence, often seen patrolling the reef perimeters. Sea turtles frequently glide through the water, especially in the shallower sections. Additionally, divers can expect to see large schools of surgeons and piranjicas congregating, adding dynamic visual activity to the underwater landscape. The site's volcanic formations contribute to a rich ecosystem, supporting these visible marine populations.

Image contributors:Claudio Giovenzana
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Dive Centers Near Trinta Réis

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Nearest Airports

Nearest airports to help plan travel to this dive area.

Fernando de Noronha AirportFEN
2 km
💵Currency:BRL

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Frequently Asked Questions

What is the maximum depth at Trinta Réis?

A dive at Trinta Réis reaches a maximum depth of 22 meters (72 ft). This allows for accessibility across a range of certified recreational divers.

What are the main geological features of the dive site?

Trinta Réis's primary geological highlight is a distinctive canyon. This natural formation is created by two prominent rocky walls, providing an engaging passage for divers.

What marine life can divers expect to see?

Divers commonly encounter sharks, rays, and sea turtles at Trinta Réis. Large schools of surgeons and piranjicas are also frequently observed, adding to the site's rich biodiversity.

Are there currents at Trinta Réis?

As a dive site located in the 'Outside area,' Trinta Réis can present moderate currents. Divers should be prepared for varying conditions, which may include drift segments.

What is the best time of year to dive Trinta Réis?

The optimal time to dive Trinta Réis is typically from November to June. During these months, conditions are generally calmer, and visibility tends to be at its best.

What level of diver certification is recommended?

Trinta Réis is suitable for open water certified divers. While the maximum depth is within recreational limits, comfort with potential currents enhances the experience.

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