Roosevelt Island Tides mark Roosevelt Island Tides
Roosevelt Island Datum (Queensboro Bridge · Station 8518687) Rising Tide

3.6 ft MLLW Next: High Tide (4.0 ft) at 12:07 PM

Astronomical water elevation benchmark for the East River strait. Seawalls across the island stand at approximately +10.7 ft MLLW.

Water Temp

70°F

The Battery

Surge Anomaly

+1.00 ft

vs Astronomical

Marine Wind

22 mph

50° · LGA Airport

East River Current Corridors

The East River strait splits around Roosevelt Island into two distinct channels, converging north at Hell Gate. Select a corridor to inspect real-time flow velocity, slack water timing, and watercraft navigation conditions.

Hell Gate · Off Mill Rock & Astoria
Peak Today: 4.9 kts

In 3332h 2m Slack at 6:12 AM

Ebb Current (215° SW toward New York Harbor)
24-Hour Velocity Curve · Hell Gate
+ Flood (NE) − Ebb (SW)
-4-20+2+4Slack 0 kts12 AM4 AM8 AM12 PM4 PM8 PM12 AMSlack 6:12 AMSlack 12:06 PMSlack 6:34 PM

Watercraft Transit · Hell Gate

Optimal Slack Window

Minimal current velocity (< 1.0 kt). Safe transit window for human-powered craft passing through from off-island launches (such as Hallets Cove in Astoria). Note: Roosevelt Island has no public boat ramps, put-ins, or landing docks.

Safe Window: Slack ± 25m
No boat launches on island

Island Water Elevation & Astronomical Forecast

Astronomical water elevation predictions and weekly tides for Roosevelt Island measured at the Queensboro Bridge (Station 8518687) relative to Mean Lower Low Water (MLLW).

24-Hour Water Elevation (Feet MLLW) Station 8518687 · Queensboro Bridge
0ft2ft4ft6ftMHHW 5.1ft12 AM4 AM8 AM12 PM4 PM8 PM12 AM0.2ft (Low)4.0ft (High)-0.1ft (Low)

Promenade Seawall Clearance

High Water (Near Lip)

High tide near seawall coping. Minor splash during boat wakes or gusty winds.

Est. Peak: 5.1 ft MLLW Seawall: +10.7 ft

Shoreline Fishing

Fair Movement

Moderate current moving bait along shoreline riprap and drop-offs.

Targets: Striped Bass, Bluefish (Southpoint & Lighthouse riprap)

7-Day High & Low Tide Forecast

Astronomical predictions for Queensboro Bridge (Station 8518687) relative to Mean Lower Low Water (MLLW). Select any day to inspect its 24-hour curve.

Today

20270210

Normal Tide
Low Tide 5:45 AM 0.2 ft
High Tide 12:07 PM 4.0 ft
Low Tide 6:03 PM -0.1 ft
Waxing

Thursday

20270211

Normal Tide
High Tide 12:35 AM 4.2 ft
Low Tide 6:34 AM 0.3 ft
High Tide 12:53 PM 3.8 ft
Low Tide 6:49 PM 0.1 ft
Waxing

Friday

20270212

Normal Tide
High Tide 1:21 AM 4.3 ft
Low Tide 7:27 AM 0.3 ft
High Tide 1:41 PM 3.6 ft
Low Tide 7:40 PM 0.2 ft
First Quarter

Saturday

20270213

Normal Tide
High Tide 2:09 AM 4.3 ft
Low Tide 8:24 AM 0.3 ft
High Tide 2:34 PM 3.4 ft
Low Tide 8:35 PM 0.3 ft
First Quarter

Sunday

20270214

Normal Tide
High Tide 3:03 AM 4.3 ft
Low Tide 9:22 AM 0.3 ft
High Tide 3:35 PM 3.3 ft
Low Tide 9:32 PM 0.3 ft
First Quarter

Monday

20270215

Normal Tide
High Tide 4:05 AM 4.4 ft
Low Tide 10:22 AM 0.2 ft
High Tide 4:41 PM 3.3 ft
Low Tide 10:31 PM 0.3 ft
First Quarter

Tuesday

20270216

Normal Tide
High Tide 5:08 AM 4.5 ft
Low Tide 11:20 AM 0.0 ft
High Tide 5:43 PM 3.5 ft
Low Tide 11:29 PM 0.2 ft
Waxing