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Map of Manuk Island (Sea Snake Island)
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Manuk Island (Sea Snake Island)

Maluku, Indonesia
AOW suggested5–30 m (16–98 ft) depthBoat entryRash guard or 2mm shorty typical

Boat dive — see Entry & access.

Manuk Island (Sea Snake Island) at a glance

Manuk Island (Sea Snake Island) is an advanced boat dive site in Maluku, Indonesia with depths of 5–30 m (16–98 ft). Typically most favorable Oct · from 3 years of archive data. Divers commonly see Trevally, Olive sea snake, and Fusiliers. Recent reports put the water around 29°C (84°F). Check the latest conditions and entry details before you go.

Next window today· 6:00–19:00 · favorable · sunset 18:11

Forecast for this hour · 5:00 · run 2 h ago
0.2 m (0.8 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 84°F · seasonal avg 84°F)

Site hazards: Numerous sea snakes (venomous but generally non-aggressive), current, remote open-ocean location, no facilities

Read the full hazards ↓

Dive windows this week

Tue6:00–19:00 favorable

0.2 m waves · 6 kn wind (0.7 ft waves · 6 kn wind)

Wed6:00–19:00 favorable

0.3 m waves · 8 kn wind (0.9 ft waves · 8 kn wind)

Thu6:00–19:00 favorable

0.4 m waves · 8 kn wind (1.1 ft waves · 8 kn wind)

Fri6:00–19:00 favorable

0.3 m waves · 8 kn wind (0.9 ft waves · 8 kn wind)

Sat6:00–19:00 favorable

0.3 m waves · 8 kn wind (0.9 ft waves · 8 kn wind)

Sun6:00–19:00 favorable

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

Mon6:00–19:00 favorable

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

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 5:32 · Sunrise 5:54 · Sunset 18:11 · some windows run past sunset

Source: Open-Meteo marine · model point 9.6 km from site · updated 27 Oct, 02:27 GMT+9

Forecast only — always assess conditions on site.

Compare this weekend’s windows near Manuk Island (Sea Snake Island)

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?

What Divers Say

Known for: Trevally, Olive sea snake, Fusiliers
Best time: September to November

Based on community reviews and site data. Conditions vary — always verify before diving.

Best months, historically

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

  1. January, 76% of days have historically been favorable, water has typically been 30°C (85°F), waves have typically been 0.9 m (3.1 ft), wind has typically been 14 knots
  2. February, 67% of days have historically been favorable, water has typically been 29°C (84°F), waves have typically been 1.2 m (3.9 ft), wind has typically been 16 knots
  3. March, 83% of days have historically been favorable, water has typically been 30°C (85°F), waves have typically been 0.7 m (2.4 ft), wind has typically been 12 knots
  4. April, 93% of days have historically been favorable, water has typically been 30°C (86°F), waves have typically been 0.8 m (2.5 ft), wind has typically been 11 knots
  5. May, 57% of days have historically been favorable, water has typically been 29°C (84°F), waves have typically been 1.4 m (4.6 ft), wind has typically been 16 knots
  6. June, 44% of days have historically been favorable, water has typically been 28°C (82°F), waves have typically been 1.5 m (4.8 ft), wind has typically been 18 knots
  7. July, 40% of days have historically been favorable, water has typically been 27°C (81°F), waves have typically been 1.6 m (5.1 ft), wind has typically been 18 knots
  8. August, 33% of days have historically been favorable, water has typically been 27°C (80°F), waves have typically been 1.5 m (4.8 ft), wind has typically been 18 knots
  9. September, 67% of days have historically been favorable, water has typically been 27°C (81°F), waves have typically been 1.2 m (4.0 ft), wind has typically been 16 knots
  10. October, 100% of days have historically been favorable, water has typically been 29°C (84°F), waves have typically been 0.8 m (2.5 ft), wind has typically been 12 knots, historically most favorable
  11. November, 97% of days have historically been favorable, water has typically been 30°C (86°F), waves have typically been 0.6 m (1.8 ft), wind has typically been 10 knots
  12. December, 91% of days have historically been favorable, water has typically been 30°C (86°F), waves have typically been 0.8 m (2.8 ft), wind has typically been 13 knots

October has 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 seen at this site

Species noted at this site — not a promise of what you’ll encounter.

Species seen here

Rough labels: “Commonly seen” usually means two or more recorded sightings near this site in public dive logs (GBIF), “Occasionally seen” one; “Seasonal” and “Rarely seen” come from dive-guide research. Not a measured rate.

Fills & rentals nearby

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

Data updated June 2026

Site details

An isolated active volcanic cone in the open Banda Sea, famous worldwide for its extraordinary concentration of sea snakes. Banded sea kraits and olive sea snakes are present year-round in remarkable numbers, weaving through lava canyons, coral fields and black-sand patches. Reef sharks and pelagics add to the spectacle at this remote, current-swept site.

boatdriftpinnaclereef

Numerous sea snakes (venomous but generally non-aggressive), current, remote open-ocean location, no facilities

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