Tides Today & Tomorrow in Sag Harbor, NY

TIDE TIMES for Monday, August 17, 2026
The tide is currently falling in Sag Harbor, NY.
Next low tide : in 3h 46m at 9:16 pm (0.4 ft)
Next high tide (tomorrow) : 3:14 am (2.3 ft)
Sunset today : 7:45 pm
Sunrise tomorrow : 6:01 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8511629
Common Questions About Tides

Sag Harbor, NY Tides - Mar 1934

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu10:202.310:362.44:19-0.14:360.06:245:39Full Moon1Thu
2Fri10:552.311:112.65:01-0.15:110.06:225:40Full Moon2Fri
3Sat11:322.211:482.65:44-0.15:470.16:205:41Waning Gibbous3Sat
4Sun12:112.16:29-0.16:240.16:195:42Waning Gibbous4Sun
5Mon12:292.712:531.97:170.07:050.26:175:44Waning Gibbous5Mon
6Tue1:152.71:401.88:100.17:540.26:165:45Waning Gibbous6Tue
7Wed2:072.72:351.89:070.28:520.36:145:46Third Quarter7Wed
8Thu3:062.63:401.710:070.29:580.36:125:47Third Quarter8Thu
9Fri4:142.64:551.811:080.211:060.26:115:48Third Quarter9Fri
10Sat5:272.66:112.012:080.16:095:49Waning Crescent10Sat
11Sun6:372.77:162.212:130.11:030.06:085:50Waning Crescent11Sun
12Mon7:392.78:112.51:160.01:55-0.26:065:51Waning Crescent12Mon
13Tue8:352.79:012.72:15-0.22:44-0.26:045:52Waning Crescent13Tue
14Wed9:262.79:482.93:10-0.33:30-0.36:035:54New Moon14Wed
15Thu10:152.610:333.04:02-0.44:15-0.36:015:55New Moon15Thu
16Fri11:012.511:183.04:51-0.45:00-0.25:595:56New Moon16Fri
17Sat11:472.45:39-0.35:44-0.15:585:57Waxing Crescent17Sat
18Sun12:022.912:322.26:28-0.26:290.15:565:58Waxing Crescent18Sun
19Mon12:462.81:172.17:170.07:160.25:545:59Waxing Crescent19Mon
20Tue1:322.62:061.98:090.28:060.45:536:00Waxing Crescent20Tue
21Wed2:232.53:031.89:030.39:000.55:516:01First Quarter21Wed
22Thu3:202.44:151.710:000.49:580.65:496:02First Quarter22Thu
23Fri4:282.35:291.810:560.510:560.65:486:03First Quarter23Fri
24Sat5:362.36:261.911:490.411:540.55:466:04First Quarter24Sat
25Sun6:332.37:112.012:380.45:446:05Waxing Gibbous25Sun
26Mon7:212.37:472.212:490.41:230.35:436:06Waxing Gibbous26Mon
27Tue8:022.48:192.41:400.32:040.35:416:08Waxing Gibbous27Tue
28Wed8:402.48:512.62:270.22:440.25:396:09Waxing Gibbous28Wed
29Thu9:162.49:242.73:120.03:220.25:386:10Full Moon29Thu
30Fri9:532.410:002.93:550.03:590.25:366:11Full Moon30Fri
31Sat10:302.310:383.04:38-0.14:360.25:346:12Full Moon31Sat
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 12:15 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 27% 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 Waxing Crescent (27% 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