Tides Today & Tomorrow in Sag Harbor, NY

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently falling in Sag Harbor, NY.
Next low tide : in 1h 12m at 11:45 pm (0.5 ft)
Next high tide (tomorrow) : 6:03 am (2.0 ft)
Sunset today : 8:16 pm
Sunrise tomorrow : 5:35 am
Moon phase : First Quarter (52% illuminated)
Tide Station Location : Station #8511629
Common Questions About Tides

Sag Harbor, NY Tides - May 1977

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:162.69:333.33:23-0.13:270.15:467:45Waxing Gibbous1Sun
2Mon10:072.610:233.44:14-0.24:150.05:457:46Full Moon2Mon
3Tue10:572.711:133.55:03-0.35:05-0.15:447:47Full Moon3Tue
4Wed11:492.75:54-0.45:56-0.15:437:48Full Moon4Wed
5Thu12:053.512:432.76:45-0.36:490.05:417:49Waning Gibbous5Thu
6Fri12:593.41:392.67:37-0.27:460.15:407:50Waning Gibbous6Fri
7Sat1:553.22:402.68:32-0.18:460.25:397:51Waning Gibbous7Sat
8Sun2:543.03:452.69:280.09:490.35:387:52Third Quarter8Sun
9Mon4:002.84:562.610:250.110:520.45:377:53Third Quarter9Mon
10Tue5:132.66:042.711:210.211:560.45:367:54Third Quarter10Tue
11Wed6:262.57:052.812:160.35:357:55Third Quarter11Wed
12Thu7:312.57:582.812:560.41:090.35:337:56Waning Crescent12Thu
13Fri8:262.48:442.91:530.31:590.35:327:57Waning Crescent13Fri
14Sat9:162.49:252.92:440.22:460.45:317:58Waning Crescent14Sat
15Sun10:002.410:013.03:310.23:300.45:317:59Waning Crescent15Sun
16Mon10:402.410:353.04:150.14:120.45:308:00New Moon16Mon
17Tue11:162.311:072.94:560.14:540.45:298:01New Moon17Tue
18Wed11:502.311:402.95:370.15:350.55:288:02New Moon18Wed
19Thu12:232.36:190.16:160.55:278:03New Moon19Thu
20Fri12:162.812:582.27:000.26:590.65:268:04Waxing Crescent20Fri
21Sat12:532.81:352.27:420.37:440.75:258:05Waxing Crescent21Sat
22Sun1:332.72:162.28:260.38:320.75:258:06Waxing Crescent22Sun
23Mon2:172.63:002.39:110.49:250.75:248:07Waxing Crescent23Mon
24Tue3:042.53:472.49:560.410:200.75:238:08First Quarter24Tue
25Wed3:562.44:392.510:440.411:170.65:228:09First Quarter25Wed
26Thu4:532.35:342.711:320.45:228:10First Quarter26Thu
27Fri5:542.36:292.912:150.512:210.45:218:10First Quarter27Fri
28Sat6:552.37:233.11:110.31:120.35:218:11Waxing Gibbous28Sat
29Sun7:542.48:173.32:060.12:040.25:208:12Waxing Gibbous29Sun
30Mon8:502.59:093.43:00-0.12:570.15:198:13Waxing Gibbous30Mon
31Tue9:452.510:023.53:52-0.23:500.05:198:14Full Moon31Tue
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 2:54 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 neap phase. Tonight's moon is 52% 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 minimum.

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 (52% illuminated). This places Sag Harbor, NY in a neap tide cycle, so tidal ranges are near their weekly minimum 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