Tides Today & Tomorrow in Greenport, NY

TIDE TIMES for Thursday, July 9, 2026
The tide is currently rising in Greenport, NY.
Next low tide (tomorrow) : 1:26 am (0.3 ft)
Next high tide : in 1h 58m at 6:41 pm (3.2 ft)
Sunset today : 8:23 pm
Sunrise tomorrow : 5:25 am
Moon phase : Waning Crescent (30% illuminated)
Tide Station Location : Station #8511907
Common Questions About Tides

Greenport, NY Tides - Sep 1987

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:472.15:153.010:440.76:157:23First Quarter1Tue
2Wed5:562.16:223.112:020.611:49 AM0.66:167:21First Quarter2Wed
3Thu7:062.27:303.11:020.512:550.66:177:20Waxing Gibbous3Thu
4Fri8:132.58:333.22:010.42:020.46:187:18Waxing Gibbous4Fri
5Sat9:092.79:303.22:540.23:040.26:197:16Waxing Gibbous5Sat
6Sun10:003.010:233.23:430.14:000.16:207:15Full Moon6Sun
7Mon10:503.211:153.24:300.04:540.06:217:13Full Moon7Mon
8Tue11:393.35:160.05:470.06:227:11Full Moon8Tue
9Wed12:063.112:273.46:020.16:390.06:237:10Waning Gibbous9Wed
10Thu12:562.91:143.46:480.27:300.16:247:08Waning Gibbous10Thu
11Fri1:442.72:013.37:340.38:220.36:257:06Waning Gibbous11Fri
12Sat2:352.52:513.18:220.59:160.46:267:05Waning Gibbous12Sat
13Sun3:322.33:493.09:130.710:130.66:277:03Third Quarter13Sun
14Mon4:402.24:552.810:090.811:110.76:287:01Third Quarter14Mon
15Tue5:492.26:002.811:060.96:296:59Third Quarter15Tue
16Wed6:542.27:012.712:080.712:040.96:306:58Third Quarter16Wed
17Thu7:502.37:572.81:040.71:010.96:316:56Waning Crescent17Thu
18Fri8:372.48:442.81:560.71:570.86:326:54Waning Crescent18Fri
19Sat9:162.59:242.82:410.62:480.76:336:53Waning Crescent19Sat
20Sun9:492.610:012.83:200.53:330.66:346:51Waning Crescent20Sun
21Mon10:192.810:362.83:570.54:160.46:356:49New Moon21Mon
22Tue10:492.911:122.74:330.54:580.46:366:47New Moon22Tue
23Wed11:213.011:482.75:090.55:410.36:376:46New Moon23Wed
24Thu11:563.15:440.56:230.36:386:44New Moon24Thu
25Fri12:262.612:333.16:210.57:070.36:396:42Waxing Crescent25Fri
26Sat1:042.41:123.26:580.67:530.46:406:41Waxing Crescent26Sat
27Sun1:442.31:563.17:400.68:440.56:416:39Waxing Crescent27Sun
28Mon2:302.22:473.18:270.79:400.56:426:37Waxing Crescent28Mon
29Tue3:272.23:493.09:260.710:400.66:436:36First Quarter29Tue
30Wed4:362.24:592.910:330.711:390.56:446:34First Quarter30Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8511907)

Common Questions About Greenport, NY Tides

Show All
What time does the tide turn (slack tide) in Greenport, NY today?

Slack tide in Greenport, NY is approximately 10:03 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 transitional phase. Tonight's moon is 30% 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 shifting between spring and neap.

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 Crescent (30% illuminated). This places Greenport, NY in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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