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Mattituck

New York, United States
AOW suggested22–31 m (72–100 ft) depthBoat entry7mm or semi-dry + hood typical

Boat dive — see Entry & access.

Mattituck at a glance

Mattituck is an advanced boat dive site in New York, United States with depths of 21.9–30.5 m (72–100 ft). Typically most favorable Jul · from 3 years of archive data. Divers commonly see Tautog (blackfish), Cunner, and Black sea bass. Recent reports put the water around 16°C (62°F). Check the latest conditions and entry details before you go.

No window today· next: tomorrow 8:00–18:00 · favorable

Forecast for this hour · 19:00 · run 5 h ago
0.1 m (0.2 ft)waves — under half a meter expected (waves — under a foot expected)

Tap a factor for its source and model point · Forecast 16°C · seasonal avg 18°C ( · Forecast 62°F · seasonal avg 65°F)

Site hazards: Depth (to ~100 ft) and Long Island Sound current; cold/dark at depth; limited visibility; boat traffic; fishing tackle.

Read the full hazards ↓

Dive windows this week

SunNo window

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

Mon8:00–18:00 favorable

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

Tue8:00–18:00 favorable

0.4 m waves · 8 kn wind (1.3 ft waves · 8 kn wind)

Wed8:00–18:00 favorable

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

Thu8:00–18:00 favorable

0.2 m waves · 9 kn wind (0.7 ft waves · 9 kn wind)

Fri8:00–18:00 favorable

0.5 m waves · 11 kn wind (1.5 ft waves · 11 kn wind)

Sat8:00–18:00 favorable

0.1 m waves · 5 kn wind (0.2 ft waves · 5 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 6:45 · Sunrise 7:13 · Sunset 17:55 · some windows run past sunset

Source: Open-Meteo marine · model point 8.9 km from site · updated 25 Oct, 13:24 GMT-4

Forecast only — always assess conditions on site.

Compare this weekend’s windows near Mattituck

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: Tautog (blackfish), Cunner, Black sea bass
Best time: Summer on slack tide; plan for depth and bottom time.

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, 61% of days have historically been favorable, water has typically been 5°C (41°F), waves have typically been 0.7 m (2.2 ft), wind has typically been 18 knots
  2. February, 71% of days have historically been favorable, water has typically been 4°C (39°F), waves have typically been 0.6 m (1.8 ft), wind has typically been 17 knots
  3. March, 69% of days have historically been favorable, water has typically been 5°C (41°F), waves have typically been 0.6 m (2.0 ft), wind has typically been 18 knots
  4. April, 82% of days have historically been favorable, water has typically been 8°C (46°F), waves have typically been 0.5 m (1.7 ft), wind has typically been 17 knots
  5. May, 91% of days have historically been favorable, water has typically been 13°C (55°F), waves have typically been 0.4 m (1.2 ft), wind has typically been 14 knots
  6. June, 94% of days have historically been favorable, water has typically been 18°C (64°F), waves have typically been 0.4 m (1.2 ft), wind has typically been 14 knots
  7. July, 98% of days have historically been favorable, water has typically been 23°C (73°F), waves have typically been 0.3 m (1.0 ft), wind has typically been 13 knots, historically most favorable
  8. August, 89% of days have historically been favorable, water has typically been 22°C (72°F), waves have typically been 0.4 m (1.2 ft), wind has typically been 14 knots
  9. September, 89% of days have historically been favorable, water has typically been 21°C (70°F), waves have typically been 0.4 m (1.3 ft), wind has typically been 15 knots
  10. October, 74% of days have historically been favorable, water has typically been 18°C (65°F), waves have typically been 0.5 m (1.7 ft), wind has typically been 17 knots
  11. November, 62% of days have historically been favorable, water has typically been 13°C (56°F), waves have typically been 0.7 m (2.2 ft), wind has typically been 20 knots
  12. December, 57% of days have historically been favorable, water has typically been 8°C (46°F), waves have typically been 0.7 m (2.2 ft), wind has typically been 19 knots

July 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

Mattituck Reef is a 50-acre NYSDEC artificial reef in Long Island Sound about 2.37 nautical miles northwest of Mattituck Inlet, in 72-100 ft of water. It holds a sunken vessel and concrete buoy sinkers and is one of the deeper Sound reefs, making it an advanced/deep boat dive. Black sea bass, tautog and scup gather on the structure; visibility is variable.

boatreefwreck

Depth (to ~100 ft) and Long Island Sound current; cold/dark at depth; limited visibility; boat traffic; fishing tackle.

Reviews

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