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 46m 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 - Jan 1963

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:192.32:292.28:340.18:55-0.27:144:31First Quarter1Tue
2Wed3:172.43:332.19:360.09:48-0.27:144:32First Quarter2Wed
3Thu4:172.64:402.010:39-0.110:42-0.27:144:32First Quarter3Thu
4Fri5:172.75:481.911:40-0.111:38-0.27:144:33First Quarter4Fri
5Sat6:182.86:571.912:42-0.27:144:34Waxing Gibbous5Sat
6Sun7:172.97:592.012:36-0.21:40-0.47:144:35Waxing Gibbous6Sun
7Mon8:113.08:542.11:33-0.22:33-0.57:144:36Waxing Gibbous7Mon
8Tue9:033.09:462.12:27-0.23:23-0.57:144:37Full Moon8Tue
9Wed9:522.910:372.13:19-0.24:11-0.57:144:38Full Moon9Wed
10Thu10:412.811:272.24:09-0.24:58-0.57:144:39Full Moon10Thu
11Fri11:282.75:00-0.15:43-0.47:144:40Full Moon11Fri
12Sat12:122.212:122.55:49-0.16:27-0.37:134:41Waning Gibbous12Sat
13Sun12:562.112:542.46:380.07:10-0.27:134:42Waning Gibbous13Sun
14Mon1:392.11:382.17:270.17:53-0.17:134:43Waning Gibbous14Mon
15Tue2:242.12:262.08:200.28:380.07:124:45Waning Gibbous15Tue
16Wed3:132.13:201.89:140.29:240.17:124:46Third Quarter16Wed
17Thu4:022.14:181.710:090.310:110.27:114:47Third Quarter17Thu
18Fri4:502.25:171.611:030.210:590.27:114:48Third Quarter18Fri
19Sat5:382.26:171.611:570.211:480.27:104:49Third Quarter19Sat
20Sun6:272.37:131.612:520.17:104:50Waning Crescent20Sun
21Mon7:142.58:001.712:390.21:42-0.17:094:51Waning Crescent21Mon
22Tue7:582.68:411.81:300.12:29-0.27:084:53Waning Crescent22Tue
23Wed8:412.79:221.92:180.03:13-0.37:084:54Waning Crescent23Wed
24Thu9:232.710:032.03:04-0.13:56-0.47:074:55New Moon24Thu
25Fri10:082.810:472.13:51-0.14:39-0.57:064:56New Moon25Fri
26Sat10:542.711:312.34:40-0.25:22-0.57:064:58New Moon26Sat
27Sun11:402.75:31-0.26:05-0.57:054:59Waxing Crescent27Sun
28Mon12:162.412:272.56:23-0.26:50-0.57:045:00Waxing Crescent28Mon
29Tue1:032.51:172.47:17-0.27:37-0.47:035:01Waxing Crescent29Tue
30Wed1:542.62:122.28:16-0.28:28-0.37:025:02First Quarter30Wed
31Thu2:522.63:162.09:17-0.29:23-0.27:015:04First Quarter31Thu
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