
Brazil
Ilha Grande
5–25 mMax Depth
boatEntry
3Species
Conditions Summary
Model forecast · local time (GMT-3)
Model conditions signal71/100
Waves
1.2 m
8.9 s
Swell
1.0 m
8.0 s
Current speed
0.4 km/h
flowing toward NW
Water temperature
24.5°C
Wind
8.1 km/h
→ SE
Sea level
0.2 m
falling
WavesChallenging
SwellWatch
Current speedCalm
Forecast Overview
Tue, Oct 20Challenging
Waves1.1–1.2 mCurrent speed0.6 km/h maxWater temperature24.4°C
Wed, Oct 21Challenging
Waves1.1–1.3 mCurrent speed1.1 km/h maxWater temperature24.4°C
TodayChallenging
Waves1.2–1.4 mCurrent speed0.8 km/h maxWater temperature24.2°C
TomorrowChallenging
Waves1.1–1.3 mCurrent speed0.4 km/h maxWater temperature24.3°C
Next 72 hours
Catalog depth5–25 m
Data sources & field guideOpen-Meteo Marine + Weather APIs
Planning context, not a safety guarantee. Coastal model accuracy is limited. Confirm the actual briefing, entry, exit, and suitability with a local operator.
Updated: cached data
Open-Meteo Marine + Weather APIs →Dive readiness
Collecting the latest marine conditions and forecast signals.
Seasons · water temperature
12-month outlook
Best window
Nov-Apr
Peak month
Feb 26.9°
Jan26.5°
Feb26.9°
Mar26.7°
Apr25.8°
May24.0°
Jun22.7°
Jul21.9°
Aug21.4°
Sep21.8°
Oct22.5°
Nov23.1°
Dec24.9°
Current: mild
Typical visibility: 15 m
Historical planning data from the recorded site profile. Water temperature and conditions can vary by day, depth, and weather; confirm current conditions with a local operator.
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Dive Types
reefsalt Waterbeginner Difficulty
Questions to ask a local operator
- What are today's current, visibility, entry, and exit conditions?
- Does the planned route stay within my certification and recent experience?
- Are there local permits, conservation rules, or equipment requirements?
Common Species
Atlantic green turtle
Chelonia mydas
DeepLog2
Neotropical river otter
Lontra longicaudis
DeepLog1
Seahorse
Hippocampus reidi
DeepLog1
Tubastraea tagusensis
Nearby OBIS observations9
Chaetodon striatus
Nearby OBIS observations8
Abudefduf saxatilis
Nearby OBIS observations7
Cerithiopsis
Nearby OBIS observations5
Diplodus argenteus
Nearby OBIS observations5
Encope emarginata
Nearby OBIS observations4
Mycteroperca acutirostris
Nearby OBIS observations4
Tubastraea coccinea
Nearby OBIS observations4
Canistrocarpus cervicornis
Nearby OBIS observations3
These are nearby biodiversity records, not a guarantee that every species will be seen on a particular dive.
DeepLog + OBIS →Photos


