Tides Today & Tomorrow in Green Island, NY

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently falling in Green Island, NY.
Next low tide : in 2h 31m at 7:36 pm (0.7 ft)
Next high tide (tomorrow) : 1:37 am (3.0 ft)
Sunset today : 7:47 pm
Sunrise tomorrow : 6:07 am
Moon phase : First Quarter (36% illuminated)
Tide Station Location : Station #8516155
Common Questions About Tides

Green Island, NY Tides - Oct 1944

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:083.98:334.02:000.02:23-0.16:506:36Full Moon1Sun
2Mon8:584.19:234.02:51-0.13:17-0.26:516:35Full Moon2Mon
3Tue9:474.210:123.93:39-0.24:08-0.26:526:33Full Moon3Tue
4Wed10:364.211:013.74:25-0.24:57-0.26:536:31Waning Gibbous4Wed
5Thu11:274.111:533.55:10-0.15:460.06:546:30Waning Gibbous5Thu
6Fri12:193.95:580.16:390.26:556:28Waning Gibbous6Fri
7Sat12:473.21:133.86:500.47:370.46:566:26Third Quarter7Sat
8Sun1:413.02:073.67:460.68:350.66:576:25Third Quarter8Sun
9Mon2:352.93:013.48:450.79:330.76:586:23Third Quarter9Mon
10Tue3:322.84:003.29:440.810:300.86:596:22Third Quarter10Tue
11Wed4:352.85:033.210:420.811:230.77:006:20Waning Crescent11Wed
12Thu5:362.85:593.211:360.87:026:18Waning Crescent12Thu
13Fri6:263.06:463.312:100.712:250.77:036:17Waning Crescent13Fri
14Sat7:093.27:273.312:540.61:120.67:046:15Waning Crescent14Sat
15Sun7:483.38:073.41:370.51:580.57:056:14New Moon15Sun
16Mon8:273.58:463.42:190.42:440.47:066:12New Moon16Mon
17Tue9:063.69:253.33:000.33:270.37:076:11New Moon17Tue
18Wed9:443.610:043.33:400.34:080.37:086:09New Moon18Wed
19Thu10:223.610:433.24:160.34:470.37:096:08Waxing Crescent19Thu
20Fri11:023.611:253.14:520.45:270.37:106:06Waxing Crescent20Fri
21Sat11:453.65:280.46:120.47:116:05Waxing Crescent21Sat
22Sun12:112.912:343.56:090.57:040.57:126:04Waxing Crescent22Sun
23Mon1:032.91:273.57:020.68:020.67:146:02First Quarter23Mon
24Tue1:582.82:223.48:050.79:010.57:156:01First Quarter24Tue
25Wed2:552.83:213.49:100.610:010.57:165:59First Quarter25Wed
26Thu3:582.94:273.410:150.510:580.37:175:58First Quarter26Thu
27Fri5:063.15:323.511:170.411:520.27:185:57Waxing Gibbous27Fri
28Sat6:063.46:303.612:140.27:195:55Waxing Gibbous28Sat
29Sun6:593.77:213.712:430.01:100.07:205:54Waxing Gibbous29Sun
30Mon7:483.98:113.71:33-0.12:05-0.17:225:53Full Moon30Mon
31Tue8:374.19:013.62:23-0.22:59-0.27:235:52Full Moon31Tue
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 10:36 pm — 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 36% 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 (36% 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