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Johnson's Reef

Andaman and Nicobar, IndiaDirections
Rash guard or 2mm shorty typical

Johnson's Reef at a glance

Johnson's Reef is a dive site in Andaman and Nicobar, India. Typically most favorable Dec–Apr · from 3 years of archive data. Recent reports put the water around 30°C (86°F). Check the latest conditions and entry details before you go.

No window today· next: tomorrow 5:00–17:00 · favorable

Forecast for this hour · 21:00 · run 22 h ago
0.3 m (1.1 ft)waves — under half a meter expected (waves — about a foot expected)

Tap a factor for its source and model point · Forecast 30°C · seasonal avg 29°C ( · Forecast 86°F · seasonal avg 85°F)

Dive windows this week

Lightest wind: Thu
MonNo window

0.4 m waves · 5 kn wind (1.2 ft waves · 5 kn wind)

Tue5:00–17:00 favorable

0.3 m waves · 6 kn wind (1.1 ft waves · 6 kn wind)

Wed5:00–17:00 favorable

0.3 m waves · 5 kn wind (1.1 ft waves · 5 kn wind)

Thu5:00–17:00 favorable

0.2 m waves · 4 kn wind (0.8 ft waves · 4 kn wind)

Fri5:00–17:00 favorable

0.2 m waves · 6 kn wind (0.8 ft waves · 6 kn wind)

Sat5:00–17:00 favorable

0.4 m waves · 7 kn wind (1.2 ft waves · 7 kn wind)

SunNot in the forecast yet

Favorable windowModerate window— no window

Every forecast dive window each day, site-local time, from wave and wind forecasts. Numbers under each bar are daylight averages.

First light 4:47 · Sunrise 5:09 · Sunset 16:54 · some windows run past sunset

Source: Open-Meteo marine · model point 5.2 km from site · updated 25 Oct, 22:53 GMT+5:30

Forecast only — always assess conditions on site.

Compare this weekend’s windows near Johnson's Reef

Recent diver reports

Dated firsthand observations from divers — not current conditions.

No diver reports for this site yet. — one dated observation helps every diver after you.

Dived here today — did the forecast match?

Best months, historically

What conditions have historically been typical at this site, month by month — not a forecast.

  1. January, 100% of days have historically been favorable, water has typically been 29°C (83°F), waves have typically been 0.6 m (2.0 ft), wind has typically been 10 knots, historically most favorable
  2. February, 100% of days have historically been favorable, water has typically been 29°C (83°F), waves have typically been 0.5 m (1.7 ft), wind has typically been 9 knots, historically most favorable
  3. March, 100% of days have historically been favorable, water has typically been 29°C (85°F), waves have typically been 0.4 m (1.4 ft), wind has typically been 8 knots, historically most favorable
  4. April, 100% of days have historically been favorable, water has typically been 31°C (87°F), waves have typically been 0.4 m (1.2 ft), wind has typically been 7 knots, historically most favorable
  5. May, 86% of days have historically been favorable, water has typically been 31°C (88°F), waves have typically been 0.7 m (2.3 ft), wind has typically been 10 knots
  6. June, 99% of days have historically been favorable, water has typically been 30°C (85°F), waves have typically been 0.9 m (3.0 ft), wind has typically been 14 knots
  7. July, 91% of days have historically been favorable, water has typically been 29°C (84°F), waves have typically been 1.0 m (3.2 ft), wind has typically been 14 knots
  8. August, 97% of days have historically been favorable, water has typically been 29°C (85°F), waves have typically been 0.8 m (2.5 ft), wind has typically been 12 knots
  9. September, 98% of days have historically been favorable, water has typically been 29°C (84°F), waves have typically been 0.8 m (2.7 ft), wind has typically been 13 knots
  10. October, 99% of days have historically been favorable, water has typically been 29°C (85°F), waves have typically been 0.5 m (1.8 ft), wind has typically been 8 knots
  11. November, 99% of days have historically been favorable, water has typically been 30°C (85°F), waves have typically been 0.7 m (2.2 ft), wind has typically been 10 knots
  12. December, 100% of days have historically been favorable, water has typically been 29°C (84°F), waves have typically been 0.7 m (2.3 ft), wind has typically been 10 knots, historically most favorable

January, February, March, April, and December have typically had the largest share of favorable days here. Conditions vary year to year — this is historical context, not a forecast.

Based on 3 years of archive data. Bar height shows the share of days each month whose conditions have historically scored favorably.

Marine life recorded at this site, by month

Recorded observations — evidence of past sightings, not a promise of what you’ll encounter.

  • Amblyeleotris diagonalis recorded here Apr (1 record)

    most recent 2013

  • Anampses lineatus recorded here Apr (1 record)

    most recent 2013

  • Blue-streak Cleaner Wrasse recorded here Apr (1 record)

    Labroides dimidiatusmost recent 2013

  • Clark's Anemonefish recorded here Apr (1 record)

    Amphiprion clarkiimost recent 2013

  • Crescent Wrasse recorded here Apr (1 record)

    Thalassoma lunaremost recent 2013

  • Cryptocentrus strigilliceps recorded here Apr (1 record)

    most recent 2013

  • Harlequin Sweetlips recorded here Apr (1 record)

    Plectorhinchus chaetodonoidesmost recent 2013

  • Mozambique Scorpionfish recorded here Apr (1 record)

    Parascorpaena mossambicamost recent 2013

Newest record here: 2013. Counts are occurrence records near this site from public biodiversity datasets (GBIF), grouped by calendar month across all sampled years. Sightings vary — past records are context, not a prediction.

Fills & rentals nearby

Facts from OpenStreetMap, corrected by the community — listed by distance only. Details change; confirm with the shop.

Shop facts come from OpenStreetMap and community corrections, shown nearest first. PickADive lists facts and contacts only — no listing is sponsored or ranked.

Data updated July 2026

Site details

A dive site in India.

No hazards recorded for this site yet — that never means there are none. Ask a local operator before you dive.

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