Tides Today & Tomorrow in Sag Harbor, NY

TIDE TIMES for Friday, August 21, 2026
The tide is currently falling in Sag Harbor, NY.
Next low tide : in 4h 15m at 11:54 am (0.8 ft)
Next high tide : 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 - Apr 1928

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:102.68:372.51:310.22:040.15:326:13Waxing Gibbous1Sun
2Mon8:572.69:172.62:240.12:470.15:306:14Waxing Gibbous2Mon
3Tue9:392.69:522.73:110.13:270.15:296:15Full Moon3Tue
4Wed10:172.510:242.73:550.04:060.25:276:16Full Moon4Wed
5Thu10:522.410:542.74:360.04:430.35:256:18Full Moon5Thu
6Fri11:252.311:242.75:170.15:200.35:246:19Full Moon6Fri
7Sat11:572.211:582.75:590.15:580.45:226:20Waning Gibbous7Sat
8Sun12:322.16:420.26:370.65:206:21Waning Gibbous8Sun
9Mon12:352.61:112.07:280.37:200.75:196:22Waning Gibbous9Mon
10Tue1:162.61:541.98:170.48:070.75:176:23Waning Gibbous10Tue
11Wed2:032.52:441.89:090.59:010.85:166:24Third Quarter11Wed
12Thu2:562.53:421.810:030.59:590.85:146:25Third Quarter12Thu
13Fri3:562.44:451.910:560.511:000.75:126:26Third Quarter13Fri
14Sat5:002.55:452.111:470.411:590.55:116:27Third Quarter14Sat
15Sun6:022.56:382.412:360.35:096:28Waning Crescent15Sun
16Mon6:592.67:262.712:560.31:220.25:086:29Waning Crescent16Mon
17Tue7:512.68:123.01:510.12:070.15:066:30Waning Crescent17Tue
18Wed8:412.78:583.22:43-0.12:520.05:056:31New Moon18Wed
19Thu9:302.79:463.43:34-0.33:38-0.15:036:32New Moon19Thu
20Fri10:202.610:343.54:24-0.44:24-0.15:026:33New Moon20Fri
21Sat11:102.611:253.55:14-0.45:130.05:006:34New Moon21Sat
22Sun12:022.56:06-0.36:040.04:596:35Waxing Crescent22Sun
23Mon12:183.412:582.47:00-0.27:000.24:576:37Waxing Crescent23Mon
24Tue1:143.21:592.37:570.08:000.34:566:38Waxing Crescent24Tue
25Wed2:163.03:102.38:560.19:040.44:556:39First Quarter25Wed
26Thu3:262.84:272.39:560.210:100.54:536:40First Quarter26Thu
27Fri4:432.65:382.410:550.311:160.54:526:41First Quarter27Fri
28Sat5:552.66:372.511:510.34:506:42First Quarter28Sat
29Sun7:562.58:262.612:180.41:420.35:497:43Waxing Gibbous29Sun
30Mon8:492.59:092.72:140.42:290.35:487:44Waxing Gibbous30Mon
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 3:17 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