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 1h 56m 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 - Sep 1944

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri7:383.48:044.11:350.21:450.16:217:26Full Moon1Fri
2Sat8:293.68:554.22:280.12:41-0.16:227:25Full Moon2Sat
3Sun9:203.89:454.23:19-0.13:35-0.26:237:23Full Moon3Sun
4Mon10:103.910:354.14:06-0.24:26-0.26:247:21Waning Gibbous4Mon
5Tue11:004.011:253.94:52-0.25:15-0.16:247:20Waning Gibbous5Tue
6Wed11:534.05:38-0.16:070.06:257:18Waning Gibbous6Wed
7Thu12:183.712:473.96:270.17:040.36:267:16Waning Gibbous7Thu
8Fri1:123.41:423.87:210.38:030.56:277:15Third Quarter8Fri
9Sat2:063.22:363.68:170.59:020.66:287:13Third Quarter9Sat
10Sun3:003.03:323.59:140.610:020.76:297:11Third Quarter10Sun
11Mon4:002.84:353.410:120.711:000.86:307:10Waning Crescent11Mon
12Tue5:062.85:383.411:090.711:540.86:317:08Waning Crescent12Tue
13Wed6:052.96:303.412:010.76:327:06Waning Crescent13Wed
14Thu6:533.07:153.512:420.712:500.66:337:05Waning Crescent14Thu
15Fri7:363.17:563.51:270.61:380.66:347:03New Moon15Fri
16Sat8:163.38:363.62:120.52:250.56:357:01New Moon16Sat
17Sun8:563.49:163.62:550.53:090.46:367:00New Moon17Sun
18Mon9:353.49:543.53:350.43:510.46:376:58New Moon18Mon
19Tue10:133.510:333.54:120.44:310.46:386:56Waxing Crescent19Tue
20Wed10:523.511:113.34:480.45:090.46:396:55Waxing Crescent20Wed
21Thu11:323.511:523.25:230.55:500.56:406:53Waxing Crescent21Thu
22Fri12:153.55:590.66:350.66:416:51Waxing Crescent22Fri
23Sat12:373.11:023.46:410.77:280.76:426:50First Quarter23Sat
24Sun1:263.01:523.47:320.88:260.86:436:48First Quarter24Sun
25Mon2:172.92:453.48:300.89:250.86:446:46First Quarter25Mon
26Tue3:132.83:453.49:320.810:260.76:456:45First Quarter26Tue
27Wed4:192.94:543.510:350.611:240.56:466:43Waxing Gibbous27Wed
28Thu5:283.15:573.711:350.56:476:41Waxing Gibbous28Thu
29Fri6:263.36:523.912:180.312:320.36:486:39Waxing Gibbous29Fri
30Sat7:183.67:434.01:090.21:270.16:496:38Full Moon30Sat
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