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 4h 13m at 5:57 pm (0.5 ft)
Next high tide (tomorrow) : 12:09 am (2.8 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 - Sep 1964

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue6:552.37:193.212:440.412:420.56:167:22Waning Crescent1Tue
2Wed8:042.58:243.31:450.31:460.46:177:20Waning Crescent2Wed
3Thu9:032.79:213.32:410.22:470.36:187:19Waning Crescent3Thu
4Fri9:552.810:143.33:320.13:430.26:197:17New Moon4Fri
5Sat10:453.011:043.24:200.14:360.16:207:15New Moon5Sat
6Sun11:323.111:533.15:060.15:270.16:217:14New Moon6Sun
7Mon12:183.15:510.16:170.26:227:12New Moon7Mon
8Tue12:413.01:013.16:350.27:060.26:237:10Waxing Crescent8Tue
9Wed1:252.81:433.17:180.47:540.36:247:09Waxing Crescent9Wed
10Thu2:092.62:253.08:020.58:430.56:257:07Waxing Crescent10Thu
11Fri2:562.43:112.88:470.79:350.66:267:05Waxing Crescent11Fri
12Sat3:512.34:052.79:360.810:290.76:277:04First Quarter12Sat
13Sun4:552.25:042.710:280.911:240.76:287:02First Quarter13Sun
14Mon5:592.16:032.711:220.96:297:00First Quarter14Mon
15Tue7:002.27:012.712:180.712:170.96:306:58First Quarter15Tue
16Wed7:542.27:542.81:120.71:120.86:316:57Waxing Gibbous16Wed
17Thu8:382.48:412.82:030.62:060.76:326:55Waxing Gibbous17Thu
18Fri9:152.59:222.92:490.52:560.66:336:53Waxing Gibbous18Fri
19Sat9:482.710:012.93:300.43:430.56:346:52Waxing Gibbous19Sat
20Sun10:222.810:402.94:090.44:270.36:356:50Full Moon20Sun
21Mon10:593.011:212.94:480.35:120.26:366:48Full Moon21Mon
22Tue11:373.15:270.35:580.26:376:46Full Moon22Tue
23Wed12:032.812:193.26:070.36:460.16:386:45Waning Gibbous23Wed
24Thu12:472.71:023.36:490.37:340.26:396:43Waning Gibbous24Thu
25Fri1:322.61:493.37:330.48:260.26:406:41Waning Gibbous25Fri
26Sat2:212.52:403.28:230.59:230.36:416:40Waning Gibbous26Sat
27Sun3:182.43:413.29:200.510:230.46:426:38Third Quarter27Sun
28Mon4:272.44:503.110:230.611:240.46:436:36Third Quarter28Mon
29Tue5:402.46:023.011:290.66:446:35Third Quarter29Tue
30Wed6:522.57:133.012:240.412:340.56:456:33Waning Crescent30Wed
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 9:03 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 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