Tides Today & Tomorrow in Green Island, NY

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently falling in Green Island, NY.
Next low tide : in 27m at 9:07 pm (0.8 ft)
Next high tide (tomorrow) : 3:00 am (2.8 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 5:41 am
Moon phase : First Quarter (52% illuminated)
Tide Station Location : Station #8516155
Common Questions About Tides

Green Island, NY Tides - Apr 1989

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:403.24:152.710:130.510:230.45:376:18Waning Crescent1Sat
2Sun5:453.36:153.012:060.36:357:19Waning Crescent2Sun
3Mon6:413.57:073.412:210.212:560.16:337:20Waning Crescent3Mon
4Tue7:313.67:563.71:170.01:45-0.16:327:21New Moon4Tue
5Wed8:203.68:453.92:13-0.22:34-0.26:307:22New Moon5Wed
6Thu9:103.69:344.13:07-0.33:22-0.36:287:23New Moon6Thu
7Fri9:583.510:224.13:59-0.44:08-0.36:277:24New Moon7Fri
8Sat10:473.311:124.04:47-0.34:53-0.26:257:25Waxing Crescent8Sat
9Sun11:383.15:36-0.15:400.06:247:26Waxing Crescent9Sun
10Mon12:053.912:322.96:290.16:310.26:227:27Waxing Crescent10Mon
11Tue1:003.61:282.87:260.37:290.46:217:28First Quarter11Tue
12Wed1:563.42:242.68:250.58:310.66:197:30First Quarter12Wed
13Thu2:513.23:212.69:240.79:320.76:177:31First Quarter13Thu
14Fri3:503.14:262.610:220.710:330.76:167:32First Quarter14Fri
15Sat4:553.05:302.711:150.711:300.76:147:33Waxing Gibbous15Sat
16Sun5:533.06:212.912:020.66:137:34Waxing Gibbous16Sun
17Mon6:403.07:043.112:210.612:450.56:117:35Waxing Gibbous17Mon
18Tue7:213.17:423.21:080.51:260.56:107:36Waxing Gibbous18Tue
19Wed8:003.18:203.41:540.42:070.46:087:37Full Moon19Wed
20Thu8:393.18:583.52:400.32:480.46:077:38Full Moon20Thu
21Fri9:183.09:363.63:230.33:280.36:057:39Full Moon21Fri
22Sat9:573.010:143.64:040.34:050.36:047:40Full Moon22Sat
23Sun10:352.910:533.64:430.34:400.46:037:41Waning Gibbous23Sun
24Mon11:162.811:363.55:220.35:150.56:017:42Waning Gibbous24Mon
25Tue12:012.76:060.45:550.56:007:43Waning Gibbous25Tue
26Wed12:243.512:522.76:560.56:440.65:587:44Waning Gibbous26Wed
27Thu1:163.41:462.77:520.67:480.75:577:45Third Quarter27Thu
28Fri2:103.42:422.78:500.68:540.75:567:46Third Quarter28Fri
29Sat3:063.33:422.89:460.59:590.65:547:47Third Quarter29Sat
30Sun4:093.34:493.010:420.411:030.45:537:48Waning Crescent30Sun
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 12:03 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 neap phase. Tonight's moon is 52% 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 near their weekly minimum.

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 (52% illuminated). This places Green Island, NY in a neap tide cycle, so tidal ranges are near their weekly minimum 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