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 42m 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 - Aug 1927

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon1:272.72:032.57:510.38:110.55:448:06Waxing Crescent1Mon
2Tue2:062.52:402.58:320.49:010.65:458:05Waxing Crescent2Tue
3Wed2:482.33:212.59:150.59:530.75:468:04Waxing Crescent3Wed
4Thu3:332.24:052.69:590.610:470.75:478:03First Quarter4Thu
5Fri4:242.14:542.610:460.711:420.75:488:02First Quarter5Fri
6Sat5:212.05:472.711:350.75:498:00First Quarter6Sat
7Sun6:231.96:422.812:370.612:250.75:507:59First Quarter7Sun
8Mon7:232.07:352.91:300.51:170.75:517:58Waxing Gibbous8Mon
9Tue8:162.18:253.02:220.42:090.65:527:57Waxing Gibbous9Tue
10Wed9:032.29:133.13:100.33:000.55:537:56Waxing Gibbous10Wed
11Thu9:492.310:003.23:560.23:510.45:547:54Full Moon11Thu
12Fri10:342.510:473.24:400.14:410.25:557:53Full Moon12Fri
13Sat11:192.711:343.25:230.05:320.25:567:52Full Moon13Sat
14Sun12:052.96:060.06:230.15:567:50Full Moon14Sun
15Mon12:223.112:533.06:500.07:160.15:577:49Waning Gibbous15Mon
16Tue1:122.91:433.17:360.08:120.15:587:48Waning Gibbous16Tue
17Wed2:032.72:363.28:250.19:110.25:597:46Waning Gibbous17Wed
18Thu2:592.63:333.29:170.210:110.36:017:45Third Quarter18Thu
19Fri4:002.44:353.110:130.311:130.36:027:43Third Quarter19Fri
20Sat5:102.35:443.111:120.46:037:42Third Quarter20Sat
21Sun6:292.26:543.112:150.412:130.46:047:40Waning Crescent21Sun
22Mon7:402.37:583.11:170.31:130.56:057:39Waning Crescent22Mon
23Tue8:412.48:543.12:140.32:110.46:067:37Waning Crescent23Tue
24Wed9:332.59:443.13:070.33:060.46:077:36Waning Crescent24Wed
25Thu10:202.610:293.13:540.23:570.46:077:34New Moon25Thu
26Fri11:022.611:103.04:380.24:440.46:087:33New Moon26Fri
27Sat11:392.711:482.95:180.25:290.46:097:31New Moon27Sat
28Sun12:132.75:570.36:130.46:107:30New Moon28Sun
29Mon12:232.812:452.76:350.46:560.46:117:28Waxing Crescent29Mon
30Tue12:582.61:172.77:130.57:410.56:127:26Waxing Crescent30Tue
31Wed1:332.51:522.77:520.68:270.66:137:25Waxing Crescent31Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8511629)

Common Questions About Sag Harbor, NY Tides

Show All
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