Tides Today & Tomorrow in Sag Harbor, NY

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently rising in Sag Harbor, NY.
Next low tide : 10:43 am (0.5 ft)
Next high tide : in 2h 07m at 4:54 am (2.1 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 - Jan 1978

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:422.22:541.99:250.29:320.17:144:31Third Quarter1Sun
2Mon3:342.33:521.810:230.110:230.07:144:32Third Quarter2Mon
3Tue4:312.54:551.811:210.011:160.07:144:33Third Quarter3Tue
4Wed5:292.65:591.812:18-0.17:144:34Waning Crescent4Wed
5Thu6:282.87:011.912:12-0.11:14-0.37:144:35Waning Crescent5Thu
6Fri7:252.98:012.01:09-0.22:08-0.57:144:35Waning Crescent6Fri
7Sat8:203.08:572.22:05-0.33:00-0.67:144:36New Moon7Sat
8Sun9:143.19:522.33:01-0.43:50-0.77:134:37New Moon8Sun
9Mon10:083.010:472.43:56-0.54:40-0.87:134:38New Moon9Mon
10Tue11:012.911:412.54:50-0.55:29-0.77:134:39New Moon10Tue
11Wed11:542.85:45-0.56:19-0.77:134:41Waxing Crescent11Wed
12Thu12:352.512:472.66:41-0.47:09-0.67:134:42Waxing Crescent12Thu
13Fri1:302.51:422.37:38-0.28:00-0.47:124:43Waxing Crescent13Fri
14Sat2:272.52:412.18:36-0.18:52-0.37:124:44First Quarter14Sat
15Sun3:272.43:461.99:360.09:45-0.17:114:45First Quarter15Sun
16Mon4:292.44:571.810:350.010:380.07:114:46First Quarter16Mon
17Tue5:302.46:051.711:330.111:310.17:114:47First Quarter17Tue
18Wed6:252.47:031.712:290.07:104:48Waxing Gibbous18Wed
19Thu7:142.47:531.712:230.11:200.07:094:49Waxing Gibbous19Thu
20Fri7:572.48:361.81:130.12:07-0.17:094:51Waxing Gibbous20Fri
21Sat8:362.59:151.82:010.12:51-0.27:084:52Waxing Gibbous21Sat
22Sun9:112.59:491.92:470.03:32-0.27:084:53Full Moon22Sun
23Mon9:452.510:211.93:310.04:11-0.37:074:54Full Moon23Mon
24Tue10:192.410:522.04:140.04:50-0.37:064:55Full Moon24Tue
25Wed10:542.411:262.14:560.05:29-0.37:054:57Full Moon25Wed
26Thu11:302.35:390.06:07-0.27:054:58Waning Gibbous26Thu
27Fri12:012.112:092.26:240.06:45-0.27:044:59Waning Gibbous27Fri
28Sat12:402.212:502.17:110.07:25-0.17:035:00Waning Gibbous28Sat
29Sun1:222.31:362.08:020.18:090.07:025:02Waning Gibbous29Sun
30Mon2:092.42:261.98:560.18:570.07:015:03Third Quarter30Mon
31Tue3:022.43:231.89:540.09:510.07:005:04Third Quarter31Tue
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 7:48 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