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 2h 09m 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 - Jul 2085

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun5:512.06:162.812:000.611:47 AM0.65:218:25First Quarter1Sun
2Mon6:482.07:072.912:540.512:360.65:218:25Waxing Gibbous2Mon
3Tue7:472.08:003.11:500.41:300.55:228:25Waxing Gibbous3Tue
4Wed8:422.18:523.22:420.22:250.45:238:25Waxing Gibbous4Wed
5Thu9:322.29:423.33:310.13:190.35:238:25Waxing Gibbous5Thu
6Fri10:212.410:323.34:180.04:110.25:248:24Full Moon6Fri
7Sat11:122.611:233.35:05-0.15:050.15:258:24Full Moon7Sat
8Sun12:042.85:52-0.26:010.15:258:23Full Moon8Sun
9Mon12:163.212:552.96:39-0.26:570.15:268:23Waning Gibbous9Mon
10Tue1:083.11:463.07:26-0.27:540.15:278:23Waning Gibbous10Tue
11Wed2:002.92:403.18:15-0.18:530.25:278:22Waning Gibbous11Wed
12Thu2:562.73:383.19:060.09:540.25:288:22Third Quarter12Thu
13Fri4:002.54:403.110:000.110:560.35:298:21Third Quarter13Fri
14Sat5:092.35:433.110:550.211:570.35:308:21Third Quarter14Sat
15Sun6:182.26:453.111:510.35:308:20Third Quarter15Sun
16Mon7:272.27:453.112:580.312:480.45:318:19Waning Crescent16Mon
17Tue8:292.28:413.11:580.31:450.55:328:19Waning Crescent17Tue
18Wed9:232.39:293.12:520.32:400.55:338:18Waning Crescent18Wed
19Thu10:102.310:133.03:390.23:300.55:348:17Waning Crescent19Thu
20Fri10:542.410:543.04:210.24:160.55:358:16New Moon20Fri
21Sat11:352.411:332.95:020.25:010.55:368:16New Moon21Sat
22Sun12:132.55:410.25:450.55:368:15New Moon22Sun
23Mon12:092.812:462.56:190.26:300.55:378:14New Moon23Mon
24Tue12:442.71:172.66:560.37:130.55:388:13Waxing Crescent24Tue
25Wed1:192.61:482.67:330.47:580.65:398:12Waxing Crescent25Wed
26Thu1:542.42:232.68:100.58:450.65:408:11Waxing Crescent26Thu
27Fri2:332.33:032.78:490.59:350.65:418:10Waxing Crescent27Fri
28Sat3:182.13:492.79:310.610:290.65:428:09First Quarter28Sat
29Sun4:102.04:412.810:170.611:240.65:438:08First Quarter29Sun
30Mon5:082.05:362.811:080.65:448:07First Quarter30Mon
31Tue6:082.06:332.912:200.612:020.65:458:06First Quarter31Tue
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