Tides Today & Tomorrow in Greenport, NY

TIDE TIMES for Thursday, July 30, 2026
The tide is currently falling in Greenport, NY.
Next low tide : in 5h 09m at 5:52 am (0.2 ft)
Next high tide : 12:10 pm (2.5 ft)
Sunset today : 8:08 pm
Sunrise tomorrow : 5:43 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #8511907
Common Questions About Tides

Greenport, NY Tides - Apr 1966

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri6:432.77:222.512:180.31:030.15:326:13Waxing Gibbous1Fri
2Sat7:452.88:142.81:220.11:540.05:316:14Waxing Gibbous2Sat
3Sun8:392.89:033.12:20-0.12:42-0.15:296:16Waxing Gibbous3Sun
4Mon9:312.89:513.23:14-0.33:29-0.25:276:17Full Moon4Mon
5Tue10:232.810:393.34:06-0.44:15-0.25:266:18Full Moon5Tue
6Wed11:142.711:283.34:58-0.45:03-0.15:246:19Full Moon6Wed
7Thu12:042.65:48-0.35:500.05:236:20Waning Gibbous7Thu
8Fri12:163.212:542.46:39-0.26:390.25:216:21Waning Gibbous8Fri
9Sat1:043.11:472.37:300.07:290.35:196:22Waning Gibbous9Sat
10Sun1:572.92:492.18:250.28:240.55:186:23Waning Gibbous10Sun
11Mon2:592.73:592.19:220.39:230.65:166:24Third Quarter11Mon
12Tue4:062.55:052.110:180.410:230.75:156:25Third Quarter12Tue
13Wed5:122.56:042.111:120.511:220.75:136:26Third Quarter13Wed
14Thu6:132.46:562.212:040.55:116:27Third Quarter14Thu
15Fri7:072.47:392.412:200.612:530.55:106:28Waning Crescent15Fri
16Sat7:542.58:152.51:140.51:370.45:086:29Waning Crescent16Sat
17Sun8:342.58:462.62:020.42:170.45:076:30Waning Crescent17Sun
18Mon9:112.49:162.82:460.32:550.45:056:31Waning Crescent18Mon
19Tue9:472.49:482.93:280.13:310.45:046:33New Moon19Tue
20Wed10:232.410:212.94:100.14:080.45:026:34New Moon20Wed
21Thu11:002.310:583.04:520.04:460.45:016:35New Moon21Thu
22Fri11:382.211:373.05:350.15:240.54:596:36New Moon22Fri
23Sat12:172.26:190.16:060.54:586:37Waxing Crescent23Sat
24Sun12:193.02:002.18:050.27:510.65:567:38Waxing Crescent24Sun
25Mon2:052.92:492.18:550.28:440.65:557:39Waxing Crescent25Mon
26Tue2:582.83:492.19:500.39:480.65:547:40First Quarter26Tue
27Wed4:022.74:572.210:470.310:550.65:527:41First Quarter27Wed
28Thu5:112.76:022.411:420.35:517:42First Quarter28Thu
29Fri6:192.67:042.612:020.512:370.35:497:43First Quarter29Fri
30Sat7:272.68:012.91:070.31:310.25:487:44Waxing Gibbous30Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8511907)

Common Questions About Greenport, NY Tides

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What time does the tide turn (slack tide) in Greenport, NY today?

Slack tide in Greenport, NY is approximately 9:01 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 Greenport, NY?

Greenport, NY is currently in a spring phase. Tonight's moon is 99% 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 maximum.

What datum are Greenport, 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 Greenport, NY?

Tide predictions for Greenport, 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 Greenport, NY?

Tide data for Greenport, NY is sourced from NOAA Station #8511907. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8511907.

What is the moon phase in Greenport, NY tonight?

Tonight the moon over Greenport, NY is Full Moon (99% illuminated). This places Greenport, NY in a spring tide cycle, so tidal ranges are near their weekly maximum 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