Tides Today & Tomorrow in Sag Harbor, NY

TIDE TIMES for Monday, August 17, 2026
The tide is currently falling in Sag Harbor, NY.
Next low tide : in 2h 18m at 8:27 am (0.4 ft)
Next high tide : 2:49 pm (2.9 ft)
Sunset today : 7:45 pm
Sunrise tomorrow : 6:01 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8511629
Common Questions About Tides

Sag Harbor, NY Tides - Feb 1935

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri8:022.88:372.11:46-0.12:42-0.47:005:05Waning Crescent1Fri
2Sat8:552.89:282.32:42-0.33:29-0.56:595:06New Moon2Sat
3Sun9:472.810:192.53:38-0.44:15-0.66:585:07New Moon3Sun
4Mon10:372.811:092.74:32-0.55:00-0.76:575:08New Moon4Mon
5Tue11:282.65:26-0.55:46-0.66:565:10Waxing Crescent5Tue
6Wed12:002.812:192.46:20-0.56:34-0.56:555:11Waxing Crescent6Wed
7Thu12:512.81:122.27:16-0.47:24-0.46:545:12Waxing Crescent7Thu
8Fri1:452.82:082.08:14-0.38:17-0.26:535:13First Quarter8Fri
9Sat2:432.73:111.89:14-0.19:13-0.16:515:15First Quarter9Sat
10Sun3:482.64:261.710:160.010:110.06:505:16First Quarter10Sun
11Mon4:592.55:451.711:180.111:110.16:495:17First Quarter11Mon
12Tue6:072.46:521.712:190.16:485:18Waxing Gibbous12Tue
13Wed7:062.47:481.812:100.21:150.06:475:20Waxing Gibbous13Wed
14Thu7:572.48:341.91:070.22:030.06:455:21Waxing Gibbous14Thu
15Fri8:412.49:152.01:580.12:46-0.16:445:22Waxing Gibbous15Fri
16Sat9:202.49:502.12:460.13:25-0.16:435:23Full Moon16Sat
17Sun9:542.410:202.13:310.04:02-0.16:415:24Full Moon17Sun
18Mon10:262.310:482.24:130.04:38-0.16:405:26Full Moon18Mon
19Tue10:572.211:162.34:550.05:13-0.16:395:27Full Moon19Tue
20Wed11:302.111:472.35:360.05:480.06:375:28Waning Gibbous20Wed
21Thu12:042.06:180.06:230.16:365:29Waning Gibbous21Thu
22Fri12:222.412:411.97:030.16:590.26:345:30Waning Gibbous22Fri
23Sat1:002.41:211.87:510.27:390.36:335:32Waning Gibbous23Sat
24Sun1:432.42:061.78:420.28:240.36:315:33Third Quarter24Sun
25Mon2:332.42:591.69:380.39:190.36:305:34Third Quarter25Mon
26Tue3:312.44:021.610:360.210:210.36:285:35Third Quarter26Tue
27Wed4:352.55:121.711:340.211:260.26:275:36Third Quarter27Wed
28Thu5:422.56:201.912:300.16:255:38Waning Crescent28Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8511629)

Common Questions About Sag Harbor, NY Tides

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What time does the tide turn (slack tide) in Sag Harbor, NY today?

Slack tide in Sag Harbor, NY is approximately 11:38 am — 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 Sag Harbor, NY?

Sag Harbor, NY is currently in a transitional phase. Tonight's moon is 27% 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 Sag Harbor, 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 Sag Harbor, NY?

Tide predictions for Sag Harbor, 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 Sag Harbor, NY?

Tide data for Sag Harbor, NY is sourced from NOAA Station #8511629. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8511629.

What is the moon phase in Sag Harbor, NY tonight?

Tonight the moon over Sag Harbor, NY is Waxing Crescent (27% illuminated). This places Sag Harbor, 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