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 (tomorrow) : in 1h 49m at 1:02 am (0.7 ft)
Next high tide (tomorrow) : 7:35 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 - Jan 1927

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat8:102.78:511.81:570.12:58-0.37:144:31Waning Crescent1Sat
2Sun8:542.89:341.92:440.03:43-0.47:144:31New Moon2Sun
3Mon9:392.910:191.93:310.04:28-0.47:144:32New Moon3Mon
4Tue10:252.911:052.04:19-0.15:12-0.57:144:33New Moon4Tue
5Wed11:132.811:532.25:09-0.15:57-0.57:144:34Waxing Crescent5Wed
6Thu12:022.76:02-0.16:43-0.57:144:35Waxing Crescent6Thu
7Fri12:442.312:542.56:58-0.17:31-0.47:144:36Waxing Crescent7Fri
8Sat1:372.41:482.37:58-0.18:22-0.37:144:37Waxing Crescent8Sat
9Sun2:332.42:482.19:00-0.19:15-0.37:144:38First Quarter9Sun
10Mon3:342.53:541.910:04-0.110:10-0.27:134:39First Quarter10Mon
11Tue4:382.65:081.811:07-0.111:06-0.27:134:40First Quarter11Tue
12Wed5:432.76:211.812:08-0.27:134:41Waxing Gibbous12Wed
13Thu6:432.77:251.812:03-0.11:07-0.37:134:42Waxing Gibbous13Thu
14Fri7:392.88:221.912:59-0.12:02-0.37:124:43Waxing Gibbous14Fri
15Sat8:302.89:141.91:53-0.12:53-0.47:124:44Waxing Gibbous15Sat
16Sun9:182.810:011.92:45-0.13:40-0.47:114:45Full Moon16Sun
17Mon10:022.710:452.03:34-0.14:24-0.47:114:47Full Moon17Mon
18Tue10:432.611:252.04:20-0.15:06-0.37:104:48Full Moon18Tue
19Wed11:222.55:060.05:47-0.37:104:49Full Moon19Wed
20Thu12:032.011:59 AM2.35:520.06:27-0.27:094:50Waning Gibbous20Thu
21Fri12:392.012:362.26:380.17:08-0.17:094:51Waning Gibbous21Fri
22Sat1:142.01:152.07:270.27:490.07:084:52Waning Gibbous22Sat
23Sun1:522.01:581.88:180.28:320.17:084:54Waning Gibbous23Sun
24Mon2:332.02:441.79:110.29:160.27:074:55Third Quarter24Mon
25Tue3:192.13:371.610:060.210:030.27:064:56Third Quarter25Tue
26Wed4:102.24:371.511:010.210:520.37:054:57Third Quarter26Wed
27Thu5:042.35:391.511:570.111:430.27:054:58Third Quarter27Thu
28Fri5:592.46:381.512:500.07:045:00Waning Crescent28Fri
29Sat6:522.57:311.612:350.21:41-0.17:035:01Waning Crescent29Sat
30Sun7:422.78:211.81:270.12:30-0.37:025:02Waning Crescent30Sun
31Mon8:322.89:081.92:19-0.13:16-0.47:015:03New Moon31Mon
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 4:18 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