Tides Today & Tomorrow in Sag Harbor, NY

TIDE TIMES for Friday, July 31, 2026
The tide is currently falling in Sag Harbor, NY.
Next low tide : in 3h 56m at 6:44 pm (0.5 ft)
Next high tide (tomorrow) : 12:36 am (2.7 ft)
Sunset today : 8:06 pm
Sunrise tomorrow : 5:44 am
Moon phase : Waning Gibbous (96% illuminated)
Tide Station Location : Station #8511629
Common Questions About Tides

Sag Harbor, NY Tides - Apr 1964

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:482.61:212.07:310.27:300.55:316:14Waning Gibbous1Wed
2Thu1:292.52:051.98:200.48:180.65:306:15Waning Gibbous2Thu
3Fri2:142.42:551.89:130.49:100.75:286:16Third Quarter3Fri
4Sat3:072.43:551.810:070.510:070.75:266:17Third Quarter4Sat
5Sun4:062.45:011.911:010.511:040.75:256:18Third Quarter5Sun
6Mon5:102.46:002.011:530.45:236:19Third Quarter6Mon
7Tue6:102.46:482.212:010.612:410.45:226:20Waning Crescent7Tue
8Wed7:032.57:312.412:550.41:270.35:206:21Waning Crescent8Wed
9Thu7:512.68:122.71:470.22:110.25:186:22Waning Crescent9Thu
10Fri8:372.68:542.92:370.02:530.15:176:23Waning Crescent10Fri
11Sat9:222.69:383.13:25-0.13:350.05:156:24New Moon11Sat
12Sun10:082.610:233.34:13-0.24:180.05:146:25New Moon12Sun
13Mon10:552.611:103.35:02-0.35:030.05:126:26New Moon13Mon
14Tue11:442.511:593.35:51-0.35:500.05:106:27Waxing Crescent14Tue
15Wed12:352.46:44-0.26:420.15:096:28Waxing Crescent15Wed
16Thu12:533.21:312.37:39-0.17:400.25:076:29Waxing Crescent16Thu
17Fri1:503.12:352.38:370.08:420.35:066:31First Quarter17Fri
18Sat2:552.93:492.39:370.19:480.45:046:32First Quarter18Sat
19Sun4:092.75:072.310:380.210:540.45:036:33First Quarter19Sun
20Mon5:272.76:162.511:360.211:590.35:016:34First Quarter20Mon
21Tue6:362.67:122.612:320.25:006:35Waxing Gibbous21Tue
22Wed7:342.68:012.812:590.31:230.24:586:36Waxing Gibbous22Wed
23Thu8:252.68:432.91:540.22:090.24:576:37Waxing Gibbous23Thu
24Fri9:112.69:222.92:440.12:530.24:566:38Waxing Gibbous24Fri
25Sat9:532.59:572.93:290.03:340.34:546:39Full Moon25Sat
26Sun11:322.411:292.95:120.05:140.35:537:40Full Moon26Sun
27Mon12:082.35:540.15:530.45:517:41Full Moon27Mon
28Tue12:022.912:422.36:350.16:330.55:507:42Full Moon28Tue
29Wed12:362.81:172.27:180.27:140.65:497:43Waning Gibbous29Wed
30Thu1:132.81:552.18:030.37:570.75:477:44Waning Gibbous30Thu
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 9:40 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 spring phase. Tonight's moon is 96% 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 near their weekly maximum.

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 Waning Gibbous (96% illuminated). This places Sag Harbor, NY in a spring tide cycle, so tidal ranges are near their weekly maximum 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