Tides Today & Tomorrow in Green Island, NY

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently rising in Green Island, NY.
Next low tide (tomorrow) : 7:46 am (0.6 ft)
Next high tide (tomorrow) : in 5h 14m at 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 - May 1944

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon3:403.14:162.710:120.710:270.85:527:49First Quarter1Mon
2Tue4:403.05:162.811:040.711:220.75:517:50Waxing Gibbous2Tue
3Wed5:383.06:082.911:510.65:497:51Waxing Gibbous3Wed
4Thu6:273.16:533.212:120.612:350.55:487:52Waxing Gibbous4Thu
5Fri7:103.17:333.31:000.51:180.45:477:53Waxing Gibbous5Fri
6Sat7:523.28:133.51:470.42:010.35:467:54Full Moon6Sat
7Sun8:333.28:543.62:340.32:450.35:457:55Full Moon7Sun
8Mon9:153.29:353.73:200.23:260.25:447:56Full Moon8Mon
9Tue9:573.210:163.84:030.14:070.25:427:57Full Moon9Tue
10Wed10:403.111:003.84:450.14:460.25:417:58Waning Gibbous10Wed
11Thu11:263.111:483.85:290.15:280.35:407:59Waning Gibbous11Thu
12Fri12:183.06:170.26:160.45:398:00Waning Gibbous12Fri
13Sat12:413.71:143.07:120.37:150.55:388:01Waning Gibbous13Sat
14Sun1:373.62:103.08:100.38:190.55:378:02Third Quarter14Sun
15Mon2:333.63:083.09:080.39:230.55:368:03Third Quarter15Mon
16Tue3:323.54:123.110:060.310:270.45:358:04Third Quarter16Tue
17Wed4:373.45:173.311:020.211:280.35:348:05Waning Crescent17Wed
18Thu5:403.46:153.511:550.15:348:06Waning Crescent18Thu
19Fri6:363.47:063.812:250.212:440.05:338:07Waning Crescent19Fri
20Sat7:273.47:543.91:190.11:340.05:328:08New Moon20Sat
21Sun8:163.48:414.02:130.02:230.05:318:09New Moon21Sun
22Mon9:043.39:274.03:050.03:120.05:308:10New Moon22Mon
23Tue9:513.210:134.03:540.03:580.15:308:11New Moon23Tue
24Wed10:373.110:583.94:390.04:410.25:298:12Waxing Crescent24Wed
25Thu11:243.011:453.75:230.25:250.35:288:12Waxing Crescent25Thu
26Fri12:142.96:090.36:110.55:288:13Waxing Crescent26Fri
27Sat12:343.51:052.86:580.47:030.75:278:14Waxing Crescent27Sat
28Sun1:243.41:552.87:500.67:590.85:268:15First Quarter28Sun
29Mon2:123.22:442.88:420.68:550.85:268:16First Quarter29Mon
30Tue3:003.13:362.89:330.79:510.95:258:16First Quarter30Tue
31Wed3:533.04:322.910:230.610:460.85:258:17First Quarter31Wed
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 4:41 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 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