Tides Today & Tomorrow in Greenport, NY

TIDE TIMES for Friday, July 17, 2026
The tide is currently rising in Greenport, NY.
Next low tide : 7:52 pm (0.2 ft)
Next high tide : in 5h 13m at 1:54 pm (2.9 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 5:31 am
Moon phase : Waxing Crescent (14% illuminated)
Tide Station Location : Station #8511907
Common Questions About Tides

Greenport, NY Tides - Sep 2071

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue5:112.45:342.810:440.611:340.66:167:22First Quarter1Tue
2Wed6:162.36:342.811:390.76:177:20First Quarter2Wed
3Thu7:162.37:312.812:290.612:330.76:187:19Waxing Gibbous3Thu
4Fri8:102.48:222.81:230.61:280.76:197:17Waxing Gibbous4Fri
5Sat8:552.59:052.92:130.62:200.66:207:15Waxing Gibbous5Sat
6Sun9:342.69:432.92:580.53:080.66:217:14Waxing Gibbous6Sun
7Mon10:082.710:192.93:390.43:520.56:227:12Full Moon7Mon
8Tue10:402.810:542.94:180.44:340.46:237:10Full Moon8Tue
9Wed11:132.811:302.84:570.45:170.46:247:09Full Moon9Wed
10Thu11:472.95:350.46:000.36:257:07Full Moon10Thu
11Fri12:072.812:223.06:130.46:430.36:267:05Waning Gibbous11Fri
12Sat12:442.71:003.06:510.47:280.46:277:03Waning Gibbous12Sat
13Sun1:242.61:403.07:310.58:140.46:287:02Waning Gibbous13Sun
14Mon2:062.52:253.08:150.69:050.56:297:00Waning Gibbous14Mon
15Tue2:552.43:183.09:050.610:020.56:306:58Third Quarter15Tue
16Wed3:532.44:193.010:030.611:000.56:316:57Third Quarter16Wed
17Thu4:582.45:253.011:050.611:580.46:326:55Third Quarter17Thu
18Fri6:052.56:313.012:080.56:336:53Third Quarter18Fri
19Sat7:122.77:383.112:560.41:120.46:346:51Waning Crescent19Sat
20Sun8:142.98:393.11:530.32:140.26:356:50Waning Crescent20Sun
21Mon9:083.19:343.22:460.13:110.16:366:48Waning Crescent21Mon
22Tue9:593.310:263.23:370.14:040.06:376:46New Moon22Tue
23Wed10:483.411:173.14:250.04:56-0.16:386:45New Moon23Wed
24Thu11:373.45:120.05:47-0.16:396:43New Moon24Thu
25Fri12:083.012:263.46:000.16:370.06:406:41Waxing Crescent25Fri
26Sat12:572.91:133.36:470.27:270.16:416:40Waxing Crescent26Sat
27Sun1:462.81:593.27:350.48:170.36:426:38Waxing Crescent27Sun
28Mon2:362.62:493.08:240.59:080.46:436:36Waxing Crescent28Mon
29Tue3:332.53:462.89:160.710:030.66:446:34First Quarter29Tue
30Wed4:382.44:492.710:110.810:570.66:456:33First Quarter30Wed
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 4:53 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 14% 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 Waxing Crescent (14% 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