Tides Today & Tomorrow in Sag Harbor, NY

TIDE TIMES for Friday, August 21, 2026
The tide is currently rising in Sag Harbor, NY.
Next low tide (tomorrow) : 1:02 am (0.7 ft)
Next high tide : in 4h 00m at 6:41 pm (2.7 ft)
Sunset today : 7:39 pm
Sunrise tomorrow : 6:05 am
Moon phase : First Quarter (65% illuminated)
Tide Station Location : Station #8511629
Common Questions About Tides

Sag Harbor, NY Tides - Jul 1927

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:263.11:142.46:550.06:580.45:208:25Waxing Crescent1Fri
2Sat1:122.92:022.47:410.17:490.55:208:25Waxing Crescent2Sat
3Sun1:572.72:482.48:270.28:420.65:218:25Waxing Crescent3Sun
4Mon2:432.53:342.49:120.39:360.65:218:24Waxing Crescent4Mon
5Tue3:312.44:212.49:580.410:310.75:228:24First Quarter5Tue
6Wed4:222.25:092.510:440.511:260.75:228:24First Quarter6Wed
7Thu5:202.15:572.511:300.65:238:24First Quarter7Thu
8Fri6:202.06:432.612:210.612:170.65:248:23First Quarter8Fri
9Sat7:182.07:282.81:140.51:050.65:248:23Waxing Gibbous9Sat
10Sun8:092.08:122.92:050.41:520.65:258:23Waxing Gibbous10Sun
11Mon8:552.08:553.02:540.32:400.65:268:22Waxing Gibbous11Mon
12Tue9:382.19:383.13:410.23:270.55:268:22Waxing Gibbous12Tue
13Wed10:202.210:223.14:260.14:130.45:278:21Full Moon13Wed
14Thu11:022.311:073.25:100.15:010.45:288:21Full Moon14Thu
15Fri11:462.411:523.15:530.05:490.35:298:20Full Moon15Fri
16Sat12:312.56:360.06:390.35:298:20Waning Gibbous16Sat
17Sun12:393.01:182.67:200.07:330.35:308:19Waning Gibbous17Sun
18Mon1:282.92:082.88:050.08:300.35:318:18Waning Gibbous18Mon
19Tue2:192.73:002.98:530.19:300.35:328:18Waning Gibbous19Tue
20Wed3:152.53:563.09:430.210:310.35:338:17Third Quarter20Wed
21Thu4:152.44:573.010:370.211:330.35:348:16Third Quarter21Thu
22Fri5:232.36:013.111:320.35:348:15Third Quarter22Fri
23Sat6:352.27:043.212:350.212:290.35:358:15Waning Crescent23Sat
24Sun7:452.28:053.21:350.21:270.35:368:14Waning Crescent24Sun
25Mon8:472.39:003.22:320.12:240.35:378:13Waning Crescent25Mon
26Tue9:432.39:523.23:260.13:190.35:388:12Waning Crescent26Tue
27Wed10:342.410:403.24:150.04:110.35:398:11New Moon27Wed
28Thu11:222.511:263.15:020.05:010.35:408:10New Moon28Thu
29Fri12:062.55:460.15:480.35:418:09New Moon29Fri
30Sat12:083.012:482.56:280.16:360.45:428:08Waxing Crescent30Sat
31Sun12:482.81:262.57:090.27:230.55:438:07Waxing Crescent31Sun
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 9:51 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 Sag Harbor, NY?

Sag Harbor, NY is currently in a transitional phase. Tonight's moon is 65% 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 First Quarter (65% 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