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 : 11:54 am (0.8 ft)
Next high tide : in 1h 26m at 6:32 am (2.0 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 1928

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun10:362.110:243.04:240.24:100.65:208:25Full Moon1Sun
2Mon11:122.111:023.05:060.24:530.65:218:25Full Moon2Mon
3Tue11:482.111:402.95:480.15:370.65:218:24Full Moon3Tue
4Wed12:252.26:280.16:210.65:228:24Full Moon4Wed
5Thu12:212.91:032.37:090.27:070.65:228:24Waning Gibbous5Thu
6Fri1:032.81:442.47:500.27:580.65:238:24Waning Gibbous6Fri
7Sat1:472.72:282.58:310.38:520.65:238:23Waning Gibbous7Sat
8Sun2:342.53:152.69:150.39:490.55:248:23Waning Gibbous8Sun
9Mon3:262.44:072.810:010.310:490.55:258:23Third Quarter9Mon
10Tue4:232.35:032.910:500.311:490.45:258:22Third Quarter10Tue
11Wed5:262.26:023.111:430.35:268:22Third Quarter11Wed
12Thu6:322.17:023.212:490.312:380.35:278:21Waning Crescent12Thu
13Fri7:382.28:013.31:480.11:360.25:288:21Waning Crescent13Fri
14Sat8:402.38:593.42:440.02:330.25:288:20Waning Crescent14Sat
15Sun9:392.39:543.43:39-0.13:300.15:298:20New Moon15Sun
16Mon10:362.410:483.44:31-0.14:260.15:308:19New Moon16Mon
17Tue11:302.511:413.35:21-0.25:200.15:318:19New Moon17Tue
18Wed12:232.66:09-0.16:140.25:328:18New Moon18Wed
19Thu12:323.11:142.66:56-0.17:080.35:338:17Waxing Crescent19Thu
20Fri1:212.92:042.77:430.08:020.45:338:16Waxing Crescent20Fri
21Sat2:112.72:532.78:290.28:570.55:348:16Waxing Crescent21Sat
22Sun3:012.53:422.69:160.39:520.55:358:15First Quarter22Sun
23Mon3:532.34:332.610:030.510:480.65:368:14First Quarter23Mon
24Tue4:522.15:252.610:510.611:440.65:378:13First Quarter24Tue
25Wed5:562.06:182.711:400.65:388:12First Quarter25Wed
26Thu7:002.07:082.712:390.612:290.75:398:11First Quarter26Thu
27Fri7:562.07:552.81:330.51:190.75:408:10Waxing Gibbous27Fri
28Sat8:442.08:392.92:230.52:090.75:418:09Waxing Gibbous28Sat
29Sun9:262.19:202.93:110.42:570.65:428:08Waxing Gibbous29Sun
30Mon10:052.110:003.03:560.33:440.65:438:07Waxing Gibbous30Mon
31Tue10:412.210:393.04:380.24:300.55:438:06Full Moon31Tue
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 9:13 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 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