Tides Today & Tomorrow in Sag Harbor, NY

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently falling in Sag Harbor, NY.
Next low tide : in 5h 40m at 10:11 pm (0.6 ft)
Next high tide (tomorrow) : 4:10 am (2.1 ft)
Sunset today : 7:43 pm
Sunrise tomorrow : 6:02 am
Moon phase : First Quarter (36% illuminated)
Tide Station Location : Station #8511629
Common Questions About Tides

Sag Harbor, NY Tides - May 1932

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:552.49:072.82:240.42:290.45:467:45Waning Crescent1Sun
2Mon9:382.39:402.83:110.33:100.55:457:46Waning Crescent2Mon
3Tue10:172.310:112.93:540.23:500.55:447:47Waning Crescent3Tue
4Wed10:522.210:412.94:350.24:290.55:437:48New Moon4Wed
5Thu11:262.211:142.95:160.15:070.55:417:49New Moon5Thu
6Fri11:582.111:492.95:570.25:450.65:407:50New Moon6Fri
7Sat12:322.16:380.26:240.75:397:51New Moon7Sat
8Sun12:262.91:092.07:210.37:050.75:387:52Waxing Crescent8Sun
9Mon1:072.81:502.08:060.47:510.85:377:53Waxing Crescent9Mon
10Tue1:502.72:352.08:530.48:430.85:367:54Waxing Crescent10Tue
11Wed2:382.63:252.19:400.59:430.85:357:55Waxing Crescent11Wed
12Thu3:322.54:202.210:290.510:450.75:347:56First Quarter12Thu
13Fri4:312.45:182.411:170.511:480.65:337:57First Quarter13Fri
14Sat5:352.46:142.712:060.45:327:58First Quarter14Sat
15Sun6:392.37:093.012:490.412:550.35:317:59Waxing Gibbous15Sun
16Mon7:392.48:013.21:470.21:450.35:308:00Waxing Gibbous16Mon
17Tue8:362.48:533.42:420.02:360.25:298:01Waxing Gibbous17Tue
18Wed9:312.49:443.63:36-0.23:270.15:288:02Full Moon18Wed
19Thu10:242.410:363.64:28-0.34:180.15:278:03Full Moon19Thu
20Fri11:172.511:293.55:19-0.35:110.15:268:04Full Moon20Fri
21Sat12:122.56:10-0.26:040.15:258:05Full Moon21Sat
22Sun12:233.41:082.47:02-0.17:000.25:258:06Waning Gibbous22Sun
23Mon1:183.22:072.47:550.07:580.45:248:07Waning Gibbous23Mon
24Tue2:153.03:092.48:480.18:590.55:238:08Waning Gibbous24Tue
25Wed3:142.74:132.49:420.210:020.65:228:09Third Quarter25Wed
26Thu4:192.55:162.510:340.311:040.65:228:09Third Quarter26Thu
27Fri5:272.46:132.611:250.45:218:10Third Quarter27Fri
28Sat6:332.27:032.612:050.612:140.55:218:11Third Quarter28Sat
29Sun7:312.27:472.71:020.51:010.55:208:12Waning Crescent29Sun
30Mon8:222.18:262.81:540.41:460.65:198:13Waning Crescent30Mon
31Tue9:072.19:012.92:420.42:300.65:198:13Waning Crescent31Tue
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 1:10 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 36% 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 (36% 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