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 5h 18m 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 - Dec 1987

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue7:153.07:552.212:290.11:31-0.16:544:21Waxing Gibbous1Tue
2Wed8:033.18:462.21:210.12:22-0.16:554:21Waxing Gibbous2Wed
3Thu8:483.19:342.12:100.13:09-0.26:564:21Full Moon3Thu
4Fri9:323.010:212.12:560.23:54-0.26:574:21Full Moon4Fri
5Sat10:143.011:072.13:410.24:39-0.26:584:21Full Moon5Sat
6Sun10:572.911:502.04:260.35:22-0.16:594:20Full Moon6Sun
7Mon11:382.75:120.36:050.07:004:20Waning Gibbous7Mon
8Tue12:312.012:172.65:580.46:470.07:014:20Waning Gibbous8Tue
9Wed1:112.012:572.46:450.57:300.17:024:20Waning Gibbous9Wed
10Thu1:532.01:402.37:350.58:140.27:034:20Waning Gibbous10Thu
11Fri2:392.02:282.18:290.68:580.37:044:20Third Quarter11Fri
12Sat3:272.13:242.09:270.59:430.37:054:21Third Quarter12Sat
13Sun4:132.24:211.810:220.510:260.37:054:21Third Quarter13Sun
14Mon4:562.35:171.811:170.411:110.37:064:21Third Quarter14Mon
15Tue5:412.56:131.712:120.27:074:21Waning Crescent15Tue
16Wed6:272.67:071.81:050.17:084:21Waning Crescent16Wed
17Thu7:142.87:571.812:460.21:56-0.17:084:22Waning Crescent17Thu
18Fri8:012.98:431.91:350.22:44-0.27:094:22Waning Crescent18Fri
19Sat8:483.19:301.92:240.13:31-0.37:094:22New Moon19Sat
20Sun9:373.110:202.03:130.04:18-0.47:104:23New Moon20Sun
21Mon10:283.111:132.14:05-0.15:06-0.47:114:23New Moon21Mon
22Tue11:203.05:00-0.15:55-0.57:114:24Waxing Crescent22Tue
23Wed12:052.212:132.85:57-0.16:43-0.47:114:24Waxing Crescent23Wed
24Thu12:582.31:072.66:56-0.17:33-0.47:124:25Waxing Crescent24Thu
25Fri1:552.42:062.47:590.08:24-0.37:124:26First Quarter25Fri
26Sat2:562.53:132.29:040.09:18-0.27:134:26First Quarter26Sat
27Sun3:592.64:232.010:090.010:12-0.17:134:27First Quarter27Sun
28Mon4:592.75:321.911:110.011:050.07:134:27First Quarter28Mon
29Tue5:582.76:401.812:13-0.17:144:28Waxing Gibbous29Tue
30Wed6:552.87:401.812:000.11:13-0.17:144:29Waxing Gibbous30Wed
31Thu7:472.88:301.812:560.12:06-0.27:144:30Waxing Gibbous31Thu
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 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