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Twin Island Dive

East Nusa Tenggara, IndonesiaDirections
Rash guard or 2mm shorty typical

Twin Island Dive at a glance

Twin Island Dive is a dive site in East Nusa Tenggara, Indonesia. Typically most favorable Jan–Dec · from 3 years of archive data. Divers commonly see Giant Manta. Recent reports put the water around 29°C (85°F). Check the latest conditions and entry details before you go.

Next window today· 6:00–18:00 · favorable · sunset 17:55

Forecast for this hour · 0:00 · run 22 h ago
0.3 m (0.9 ft)waves — under half a meter expected (waves — under a foot expected)

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

Dive windows this week

Sun6:00–18:00 favorable

0.3 m waves · 4 kn wind (0.9 ft waves · 4 kn wind)

Mon6:00–18:00 favorable

0.3 m waves · 3 kn wind (0.9 ft waves · 3 kn wind)

Tue6:00–18:00 favorable

0.2 m waves · 3 kn wind (0.7 ft waves · 3 kn wind)

Wed6:00–18:00 favorable

0.2 m waves · 4 kn wind (0.7 ft waves · 4 kn wind)

Thu6:00–18:00 favorable

0.2 m waves · 5 kn wind (0.7 ft waves · 5 kn wind)

Fri6:00–18:00 favorable

0.2 m waves · 2 kn wind (0.6 ft waves · 2 kn wind)

SatNot 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 5:12 · Sunrise 5:33 · Sunset 17:55 · some windows run past sunset

Source: Open-Meteo marine · model point 11 km from site · updated 24 Oct, 01:29 GMT+8

Forecast only — always assess conditions on site.

Compare this weekend’s windows near Twin Island Dive

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 (84°F), waves have typically been 0.5 m (1.5 ft), wind has typically been 6 knots, historically most favorable
  2. February, 100% of days have historically been favorable, water has typically been 28°C (83°F), waves have typically been 0.5 m (1.5 ft), wind has typically been 6 knots, historically most favorable
  3. March, 100% of days have historically been favorable, water has typically been 29°C (84°F), waves have typically been 0.4 m (1.2 ft), wind has typically been 5 knots, historically most favorable
  4. April, 100% of days have historically been favorable, water has typically been 29°C (85°F), waves have typically been 0.3 m (0.9 ft), wind has typically been 5 knots, historically most favorable
  5. May, 100% of days have historically been favorable, water has typically been 30°C (86°F), waves have typically been 0.3 m (1.0 ft), wind has typically been 5 knots, historically most favorable
  6. June, 100% of days have historically been favorable, water has typically been 29°C (85°F), waves have typically been 0.3 m (1.1 ft), wind has typically been 5 knots, historically most favorable
  7. July, 100% of days have historically been favorable, water has typically been 29°C (84°F), waves have typically been 0.4 m (1.2 ft), wind has typically been 6 knots, historically most favorable
  8. August, 100% of days have historically been favorable, water has typically been 29°C (83°F), waves have typically been 0.3 m (1.1 ft), wind has typically been 5 knots, historically most favorable
  9. September, 100% of days have historically been favorable, water has typically been 29°C (84°F), waves have typically been 0.3 m (1.0 ft), wind has typically been 5 knots, historically most favorable
  10. October, 100% of days have historically been favorable, water has typically been 29°C (85°F), waves have typically been 0.3 m (1.0 ft), wind has typically been 5 knots, historically most favorable
  11. November, 100% of days have historically been favorable, water has typically been 30°C (87°F), waves have typically been 0.2 m (0.8 ft), wind has typically been 5 knots, historically most favorable
  12. December, 100% of days have historically been favorable, water has typically been 30°C (85°F), waves have typically been 0.4 m (1.3 ft), wind has typically been 5 knots, historically most favorable

January, February, March, April, May, June, July, August, September, October, November, 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.

  • Giant Manta recorded here Jan (1 record)

    Mobula birostrismost recent 2017

Newest record here: 2017. 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

No dive shops mapped within 25 km (16 mi). Know one? Add it to the map.

Data updated July 2026

Site details

A dive site in Indonesia.

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

Reviews

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