Johnson's Reef

India

Johnson's Reef

5–25 mMax Depth
boatEntry
5Species

Conditions Summary

Model forecast · local time (GMT+5:30)

Model conditions signal100/100
Waves
0.5 m
8.8 s
Swell
0.3 m
10.9 s
Current speed
0.2 km/h
flowing toward W
Water temperature
30.9°C
Wind
15.8 km/h
→ E
Sea level
0.2 m
rising
WavesCalm
SwellCalm
Current speedCalm
Planning window
10:15–09:00
Calmest model window

Forecast Overview

Tue, Oct 20Watch
Waves0.4–0.6 mCurrent speed0.5 km/h maxWater temperature30.8°C
TodayWatch
Waves0.5–0.8 mCurrent speed0.9 km/h maxWater temperature30.5°C
TomorrowWatch
Waves0.6–0.9 mCurrent speed0.6 km/h maxWater temperature30.6°C
Fri, Oct 23Watch
Waves0.5–0.6 mCurrent speed0.8 km/h maxWater temperature30.5°C
Next 72 hours
09:00
Waves: 0.4 m
Current speed: 0.3 km/h
Water temperature: 30.8°C
15:00
Waves: 0.6 m
Current speed: 0.5 km/h
Water temperature: 30.9°C
21:00
Waves: 0.5 m
Current speed: 0.4 km/h
Water temperature: 30.6°C
03:00
Waves: 0.5 m
Current speed: 0.4 km/h
Water temperature: 30.4°C
09:00
Waves: 0.7 m
Current speed: 0.5 km/h
Water temperature: 30.6°C
15:00
Waves: 0.8 m
Current speed: 0.8 km/h
Water temperature: 30.6°C
21:00
Waves: 0.8 m
Current speed: 0.3 km/h
Water temperature: 30.5°C
03:00
Waves: 0.9 m
Current speed: 0.4 km/h
Water temperature: 30.4°C
09:00
Waves: 0.9 m
Current speed: 0.4 km/h
Water temperature: 30.7°C
15:00
Waves: 0.8 m
Current speed: 0.6 km/h
Water temperature: 30.7°C
21:00
Waves: 0.7 m
Current speed: 0.6 km/h
Water temperature: 30.5°C
03:00
Waves: 0.6 m
Current speed: 0.2 km/h
Water temperature: 30.4°C
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.

Open-Meteo Marine + Weather APIs →

Dive readiness

Collecting the latest marine conditions and forecast signals.

Seasons · water temperature

12-month outlook

Best window

Oct-May

Peak month

Apr 29.9°

Jan27.7°
Feb27.9°
Mar28.7°
Apr29.9°
May29.9°
Jun29.1°
Jul28.7°
Aug28.5°
Sep28.4°
Oct28.7°
Nov28.6°
Dec28.2°
Current: mild
Typical visibility: 20 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.

Explore nearby centers on the map

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Dive Types

reefsalt Waterintermediate 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

12 km · nearby observations
Bigeye snapper
Lutjanus lutjanus
DeepLog1
Green humphead parrotfish
Bolbometopon muricatum
DeepLog1
Porcelain coral
Leptoseris explanata
DeepLog1
Slender grouper
Anyperodon leucogrammicus
DeepLog1
Tiger cowrie
Cypraea tigris
DeepLog1
Tridacna crocea
Nearby OBIS observations6
Abudefduf vaigiensis
Nearby OBIS observations3
Holothuria atra
Nearby OBIS observations3
Pilumnus vespertilio
Nearby OBIS observations3
Stylissa massa
Nearby OBIS observations3
Acanthopleura gemmata
Nearby OBIS observations2
Bacteroidetes
Nearby OBIS observations2
These are nearby biodiversity records, not a guarantee that every species will be seen on a particular dive.
DeepLog + OBIS →

Photos

Johnson's Reef photo 2
Johnson's Reef photo 3
Johnson's Reef photo 4
Johnson's Reef photo 5
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