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Map of U-853 (wreck)
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ExpertBoat entry

U-853 (wreck)

Rhode Island, United States
Advanced suggested31–40 m (100–130 ft) depthBoat entry7mm or semi-dry + hood typical

Boat dive — see Entry & access.

U-853 (wreck) at a glance

U-853 (wreck) is an expert boat dive site in Rhode Island, United States with depths of 30.5–39.6 m (100–130 ft). Typically most favorable Jun · from 3 years of archive data. Divers commonly see Frilled anemone, Atlantic cod, and Cunner. Recent reports put the water around 16°C (61°F). Check the latest conditions and entry details before you go.

Next window today· 8:00–18:00 · favorable & moderate · sunset 17:49

Forecast for this hour · 0:00 · run 11 h ago
0.6 m (1.9 ft)waves — under a meter expected (waves — about two feet expected)

Tap a factor for its source and model point · Forecast 16°C · seasonal avg 17°C ( · Forecast 61°F · seasonal avg 63°F)

Site hazards: Depth (130 ft), cold dark water, sharp jagged metal and debris, confined spaces inside the hull, currents, monofilament and nets

Read the full hazards ↓

Dive windows this week

Mon8:00–16:00 favorable, 16:00–18:00 moderate

0.7 m waves · 14 kn wind (2.3 ft waves · 14 kn wind)

Tue8:00–18:00 favorable

0.9 m waves · 11 kn wind (3.0 ft waves · 11 kn wind)

Wed8:00–18:00 favorable

0.6 m waves · 5 kn wind (1.9 ft waves · 5 kn wind)

Thu8:00–14:00 favorable, 14:00–18:00 moderate

0.6 m waves · 14 kn wind (1.9 ft waves · 14 kn wind)

Fri8:00–18:00 moderate

0.9 m waves · 17 kn wind (3.1 ft waves · 17 kn wind)

Sat8:00–9:00 moderate, 9:00–18:00 favorable

0.5 m waves · 8 kn wind (1.6 ft waves · 8 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 6:41 · Sunrise 7:10 · Sunset 17:49 · some windows run past sunset

Source: Open-Meteo marine · model point 6.3 km from site · updated 25 Oct, 13:26 GMT-4

Forecast only — always assess conditions on site.

Compare this weekend’s windows near U-853 (wreck)

Forecast · NOAA tide model

Tide & slack timing

Loading tide predictions

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: Frilled anemone, Cunner, American lobster
Best time: Calm summer days at slack tide

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, 22% of days have historically been favorable, water has typically been 7°C (45°F), waves have typically been 2.0 m (6.4 ft), wind has typically been 23 knots
  2. February, 22% of days have historically been favorable, water has typically been 5°C (42°F), waves have typically been 1.9 m (6.2 ft), wind has typically been 23 knots
  3. March, 18% of days have historically been favorable, water has typically been 5°C (42°F), waves have typically been 2.0 m (6.4 ft), wind has typically been 22 knots
  4. April, 42% of days have historically been favorable, water has typically been 8°C (46°F), waves have typically been 1.7 m (5.4 ft), wind has typically been 20 knots
  5. May, 59% of days have historically been favorable, water has typically been 12°C (53°F), waves have typically been 1.3 m (4.4 ft), wind has typically been 18 knots
  6. June, 72% of days have historically been favorable, water has typically been 16°C (62°F), waves have typically been 1.2 m (3.9 ft), wind has typically been 17 knots, historically most favorable
  7. July, 70% of days have historically been favorable, water has typically been 22°C (71°F), waves have typically been 1.1 m (3.7 ft), wind has typically been 15 knots
  8. August, 63% of days have historically been favorable, water has typically been 22°C (71°F), waves have typically been 1.3 m (4.3 ft), wind has typically been 16 knots
  9. September, 51% of days have historically been favorable, water has typically been 20°C (69°F), waves have typically been 1.5 m (4.8 ft), wind has typically been 17 knots
  10. October, 45% of days have historically been favorable, water has typically been 17°C (63°F), waves have typically been 1.6 m (5.4 ft), wind has typically been 19 knots
  11. November, 28% of days have historically been favorable, water has typically been 14°C (57°F), waves have typically been 1.7 m (5.6 ft), wind has typically been 23 knots
  12. December, 28% of days have historically been favorable, water has typically been 10°C (50°F), waves have typically been 2.0 m (6.5 ft), wind has typically been 23 knots

June 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

A German Type IXC/40 U-boat sunk by US Navy and Coast Guard depth charges on May 6, 1945 - one day before Germany's surrender - after it torpedoed the collier Black Point off Point Judith. The submarine lies in about 130 feet of water roughly 7 miles east of Block Island and is one of southern New England's most famous boat dives, with the conning tower, periscope and depth-charge blast holes visible. It is a war grave: penetration is hazardous and removing artifacts is illegal.

boatwreck

Depth (130 ft), cold dark water, sharp jagged metal and debris, confined spaces inside the hull, currents, monofilament and nets

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