Tides Today & Tomorrow in Green Island, NY

TIDE TIMES for Friday, August 21, 2026
The tide is currently falling in Green Island, NY.
Next low tide : in 3h 52m at 10:24 pm (1.0 ft)
Next high tide (tomorrow) : 4:13 am (2.5 ft)
Sunset today : 7:43 pm
Sunrise tomorrow : 6:10 am
Moon phase : First Quarter (65% illuminated)
Tide Station Location : Station #8516155
Common Questions About Tides

Green Island, NY Tides - Aug 1941

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri3:133.23:523.69:360.310:210.55:508:09First Quarter1Fri
2Sat4:173.14:583.710:340.311:220.45:518:08Waxing Gibbous2Sat
3Sun5:243.16:003.811:320.25:528:07Waxing Gibbous3Sun
4Mon6:253.16:553.912:190.412:270.25:538:06Waxing Gibbous4Mon
5Tue7:183.27:464.01:130.31:210.25:548:05Full Moon5Tue
6Wed8:093.38:344.02:060.22:150.15:558:04Full Moon6Wed
7Thu8:573.49:214.02:570.13:070.15:568:03Full Moon7Thu
8Fri9:443.410:063.93:440.13:550.15:578:01Full Moon8Fri
9Sat10:303.410:503.74:270.14:390.25:588:00Waning Gibbous9Sat
10Sun11:143.411:343.65:080.25:230.35:597:59Waning Gibbous10Sun
11Mon12:003.45:490.36:080.46:007:58Waning Gibbous11Mon
12Tue12:193.412:473.36:320.46:570.66:017:56Waning Gibbous12Tue
13Wed1:053.21:343.37:190.57:490.76:027:55Third Quarter13Wed
14Thu1:513.12:213.28:080.78:430.86:037:54Third Quarter14Thu
15Fri2:382.93:093.28:580.79:380.96:047:52Third Quarter15Fri
16Sat3:282.84:043.29:500.810:340.96:057:51Third Quarter16Sat
17Sun4:272.75:043.210:440.811:270.86:067:49Waning Crescent17Sun
18Mon5:282.86:003.411:350.76:077:48Waning Crescent18Mon
19Tue6:222.96:483.512:180.712:250.66:087:47Waning Crescent19Tue
20Wed7:093.17:333.71:060.61:130.46:097:45Waning Crescent20Wed
21Thu7:543.28:183.81:540.42:020.36:107:44New Moon21Thu
22Fri8:393.49:023.92:420.32:520.26:117:42New Moon22Fri
23Sat9:253.69:474.03:270.13:400.16:127:41New Moon23Sat
24Sun10:113.710:333.94:100.04:260.06:137:39Waxing Crescent24Sun
25Mon10:583.811:203.84:530.05:130.06:137:38Waxing Crescent25Mon
26Tue11:483.85:360.06:030.16:147:36Waxing Crescent26Tue
27Wed12:113.712:423.86:240.16:590.36:157:35Waxing Crescent27Wed
28Thu1:053.51:373.87:180.27:590.46:167:33First Quarter28Thu
29Fri2:003.32:333.78:160.39:010.56:177:31First Quarter29Fri
30Sat2:573.23:323.79:150.410:030.56:187:30First Quarter30Sat
31Sun4:003.04:383.610:160.511:040.56:197:28Waxing Gibbous31Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8516155)

Common Questions About Green Island, NY Tides

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What time does the tide turn (slack tide) in Green Island, NY today?

Slack tide in Green Island, NY is approximately 1:18 am — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Green Island, NY?

Green Island, NY is currently in a transitional phase. Tonight's moon is 65% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are shifting between spring and neap.

What datum are Green Island, NY tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for Green Island, NY?

Tide predictions for Green Island, NY come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for Green Island, NY?

Tide data for Green Island, NY is sourced from NOAA Station #8516155. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8516155.

What is the moon phase in Green Island, NY tonight?

Tonight the moon over Green Island, NY is First Quarter (65% illuminated). This places Green Island, NY in a transitional tide cycle, so tidal ranges are shifting between spring and neap this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA