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 4h 23m 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 - Apr 1944

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:213.13:502.59:520.610:030.76:377:18First Quarter1Sat
2Sun4:213.04:542.510:490.611:000.76:357:19Waxing Gibbous2Sun
3Mon5:233.05:542.611:410.611:530.66:337:20Waxing Gibbous3Mon
4Tue6:173.06:422.812:280.56:327:21Waxing Gibbous4Tue
5Wed7:033.17:253.012:420.51:130.46:307:22Waxing Gibbous5Wed
6Thu7:443.28:053.11:290.41:570.36:297:23Waxing Gibbous6Thu
7Fri8:253.38:453.32:160.32:400.36:277:24Full Moon7Fri
8Sat9:043.39:243.43:020.23:210.26:257:25Full Moon8Sat
9Sun9:443.310:033.53:450.13:590.26:247:26Full Moon9Sun
10Mon10:233.210:423.54:250.14:350.26:227:27Full Moon10Mon
11Tue11:033.111:233.55:050.15:110.26:217:28Waning Gibbous11Tue
12Wed11:473.05:460.25:490.36:197:29Waning Gibbous12Wed
13Thu12:083.512:352.96:340.36:350.46:187:30Waning Gibbous13Thu
14Fri12:593.51:282.87:290.47:310.56:167:32Third Quarter14Fri
15Sat1:533.52:232.88:290.48:340.56:147:33Third Quarter15Sat
16Sun2:493.43:222.89:290.49:390.56:137:34Third Quarter16Sun
17Mon3:523.44:302.910:290.410:440.46:117:35Third Quarter17Mon
18Tue5:013.45:373.111:270.211:450.26:107:36Waning Crescent18Tue
19Wed6:043.56:353.412:200.16:087:37Waning Crescent19Wed
20Thu6:583.67:263.612:420.11:110.06:077:38Waning Crescent20Thu
21Fri7:493.78:153.91:38-0.12:02-0.16:067:39New Moon21Fri
22Sat8:393.79:044.02:33-0.22:52-0.26:047:40New Moon22Sat
23Sun9:273.69:514.03:25-0.23:39-0.26:037:41New Moon23Sun
24Mon10:153.510:374.04:14-0.24:24-0.16:017:42Waxing Crescent24Mon
25Tue11:023.311:253.95:00-0.15:070.06:007:43Waxing Crescent25Tue
26Wed11:513.15:460.05:520.25:597:44Waxing Crescent26Wed
27Thu12:143.712:423.06:360.26:420.45:577:45Waxing Crescent27Thu
28Fri1:053.51:342.87:290.47:360.65:567:46First Quarter28Fri
29Sat1:563.32:252.78:240.68:330.75:547:47First Quarter29Sat
30Sun2:463.23:172.79:180.79:300.85:537:48First Quarter30Sun
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