Tides Today & Tomorrow in Mamaroneck, NY

TIDE TIMES for Friday, August 21, 2026
The tide is currently rising in Mamaroneck, NY.
Next low tide (tomorrow) : 2:10 am (1.0 ft)
Next high tide : in 5h 41m at 7:23 pm (6.8 ft)
Sunset today : 7:44 pm
Sunrise tomorrow : 6:11 am
Moon phase : First Quarter (65% illuminated)
Tide Station Location : Station #8518091
Common Questions About Tides

Mamaroneck, NY Tides - Oct 1929

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue9:528.310:128.23:57-0.24:19-0.35:515:38New Moon1Tue
2Wed10:378.510:588.14:42-0.45:07-0.55:525:36New Moon2Wed
3Thu11:188.511:427.85:23-0.45:52-0.65:535:34New Moon3Thu
4Fri11:588.46:01-0.36:34-0.55:545:33New Moon4Fri
5Sat12:247.512:378.16:360.07:15-0.35:555:31Waxing Crescent5Sat
6Sun1:077.21:167.87:120.37:560.15:565:29Waxing Crescent6Sun
7Mon1:516.81:577.47:490.78:410.45:575:28Waxing Crescent7Mon
8Tue2:396.52:427.18:331.19:330.85:585:26First Quarter8Tue
9Wed3:356.33:356.89:251.510:331.15:595:24First Quarter9Wed
10Thu4:386.24:376.610:281.811:361.26:005:23First Quarter10Thu
11Fri5:456.25:506.711:371.96:015:21First Quarter11Fri
12Sat6:486.46:586.912:361.212:441.86:025:20First Quarter12Sat
13Sun7:416.87:527.21:291.11:421.56:035:18Waxing Gibbous13Sun
14Mon8:237.28:367.52:150.92:301.16:045:17Waxing Gibbous14Mon
15Tue8:587.69:137.82:540.63:120.66:065:15Waxing Gibbous15Tue
16Wed9:278.09:478.03:290.33:520.26:075:13Waxing Gibbous16Wed
17Thu9:588.510:238.14:020.04:31-0.26:085:12Full Moon17Thu
18Fri10:318.811:018.24:37-0.25:10-0.56:095:10Full Moon18Fri
19Sat11:099.011:428.15:14-0.35:50-0.76:105:09Full Moon19Sat
20Sun11:519.15:54-0.36:33-0.66:115:07Waning Gibbous20Sun
21Mon12:277.912:369.06:36-0.17:19-0.46:125:06Waning Gibbous21Mon
22Tue1:157.71:258.87:240.28:12-0.16:135:05Waning Gibbous22Tue
23Wed2:077.42:198.48:170.59:140.36:145:03Third Quarter23Wed
24Thu3:077.23:208.09:200.910:270.66:165:02Third Quarter24Thu
25Fri4:167.04:317.610:361.111:440.76:175:00Third Quarter25Fri
26Sat5:357.05:557.412:001.06:184:59Third Quarter26Sat
27Sun6:527.37:167.512:540.61:170.76:194:58Waning Crescent27Sun
28Mon7:567.78:207.61:550.32:210.36:204:56Waning Crescent28Mon
29Tue8:498.09:137.72:480.13:17-0.16:214:55Waning Crescent29Tue
30Wed9:358.310:007.73:36-0.14:07-0.56:234:54New Moon30Wed
31Thu10:178.410:447.64:19-0.24:53-0.66:244:52New Moon31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8518091)

Common Questions About Mamaroneck, NY Tides

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What time does the tide turn (slack tide) in Mamaroneck, NY today?

Slack tide in Mamaroneck, NY is approximately 10:46 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 Mamaroneck, NY?

Mamaroneck, 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 Mamaroneck, 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 Mamaroneck, NY?

Tide predictions for Mamaroneck, 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 Mamaroneck, NY?

Tide data for Mamaroneck, NY is sourced from NOAA Station #8518091. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8518091.

What is the moon phase in Mamaroneck, NY tonight?

Tonight the moon over Mamaroneck, NY is First Quarter (65% illuminated). This places Mamaroneck, 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