Tides Today & Tomorrow in Greenport, NY

TIDE TIMES for Friday, July 31, 2026
The tide is currently rising in Greenport, NY.
Next low tide : 6:42 pm (0.5 ft)
Next high tide : in 1h 49m at 12:42 pm (2.6 ft)
Sunset today : 8:07 pm
Sunrise tomorrow : 5:44 am
Moon phase : Waning Gibbous (96% illuminated)
Tide Station Location : Station #8511907
Common Questions About Tides

Greenport, NY Tides - Dec 1962

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:572.112:582.76:540.47:410.06:554:21Waxing Crescent1Sat
2Sun1:452.21:492.57:490.48:310.06:564:21Waxing Crescent2Sun
3Mon2:402.22:482.48:510.49:230.16:574:21First Quarter3Mon
4Tue3:402.43:532.39:540.310:160.06:584:21First Quarter4Tue
5Wed4:402.64:592.210:560.211:090.06:594:21First Quarter5Wed
6Thu5:382.86:052.211:580.06:594:21Waxing Gibbous6Thu
7Fri6:363.07:102.312:03-0.112:58-0.27:004:20Waxing Gibbous7Fri
8Sat7:313.18:082.312:59-0.11:55-0.37:014:20Waxing Gibbous8Sat
9Sun8:233.29:022.31:53-0.22:48-0.57:024:20Waxing Gibbous9Sun
10Mon9:133.39:562.42:45-0.23:38-0.57:034:20Full Moon10Mon
11Tue10:043.210:492.43:35-0.24:28-0.57:044:21Full Moon11Tue
12Wed10:543.111:422.34:27-0.25:18-0.57:054:21Full Moon12Wed
13Thu11:443.05:19-0.16:06-0.47:054:21Waning Gibbous13Thu
14Fri12:322.312:332.86:100.06:54-0.37:064:21Waning Gibbous14Fri
15Sat1:232.31:212.67:020.27:41-0.17:074:21Waning Gibbous15Sat
16Sun2:172.22:142.37:570.38:300.07:084:22Waning Gibbous16Sun
17Mon3:142.23:132.18:540.49:200.17:084:22Third Quarter17Mon
18Tue4:102.24:142.09:510.410:080.27:094:22Third Quarter18Tue
19Wed5:002.25:131.910:470.410:550.27:104:23Third Quarter19Wed
20Thu5:482.36:111.811:410.311:420.27:104:23Third Quarter20Thu
21Fri6:322.47:051.812:350.27:114:23Waning Crescent21Fri
22Sat7:142.57:521.812:300.21:250.17:114:24Waning Crescent22Sat
23Sun7:522.68:331.91:180.22:12-0.17:124:24Waning Crescent23Sun
24Mon8:292.79:111.92:030.22:56-0.27:124:25Waning Crescent24Mon
25Tue9:072.79:501.92:460.13:38-0.37:124:26New Moon25Tue
26Wed9:462.810:302.03:290.14:21-0.37:134:26New Moon26Wed
27Thu10:282.811:122.04:130.15:04-0.37:134:27New Moon27Thu
28Fri11:112.711:542.14:590.05:47-0.47:134:28New Moon28Fri
29Sat11:552.75:470.06:31-0.37:144:28Waxing Crescent29Sat
30Sun12:382.212:422.56:380.07:15-0.37:144:29Waxing Crescent30Sun
31Mon1:252.31:322.47:330.18:04-0.37:144:30Waxing Crescent31Mon
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 3:42 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 96% 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 Waning Gibbous (96% 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