Tides Today & Tomorrow in Mamaroneck, NY

TIDE TIMES for Friday, August 21, 2026
The tide is currently rising in Mamaroneck, NY.
Next low tide : 1:06 pm (1.6 ft)
Next high tide : in 5h 26m at 7:09 am (6.1 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 1930

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed6:506.57:117.012:460.91:011.55:505:38Waxing Gibbous1Wed
2Thu7:486.88:077.21:420.91:591.35:515:36Waxing Gibbous2Thu
3Fri8:377.18:547.42:320.72:491.05:535:35Waxing Gibbous3Fri
4Sat9:197.49:347.63:140.53:320.85:545:33Waxing Gibbous4Sat
5Sun9:547.610:097.63:510.44:090.55:555:31Waxing Gibbous5Sun
6Mon10:227.810:397.74:210.34:420.35:565:30Full Moon6Mon
7Tue10:458.011:067.64:470.25:120.15:575:28Full Moon7Tue
8Wed11:088.211:357.65:130.25:42-0.15:585:26Full Moon8Wed
9Thu11:388.35:420.26:15-0.15:595:25Full Moon9Thu
10Fri12:097.512:148.46:160.26:51-0.16:005:23Waning Gibbous10Fri
11Sat12:487.412:558.56:550.47:330.16:015:22Waning Gibbous11Sat
12Sun1:327.31:418.47:390.68:210.46:025:20Waning Gibbous12Sun
13Mon2:217.22:338.28:300.99:180.76:035:18Third Quarter13Mon
14Tue3:167.03:308.09:281.110:240.96:045:17Third Quarter14Tue
15Wed4:207.04:357.810:361.311:390.96:055:15Third Quarter15Wed
16Thu5:317.15:487.711:531.26:065:14Third Quarter16Thu
17Fri6:477.47:067.812:520.71:120.96:075:12Waning Crescent17Fri
18Sat7:547.88:148.01:560.42:200.46:095:11Waning Crescent18Sat
19Sun8:488.39:118.22:510.03:19-0.26:105:09Waning Crescent19Sun
20Mon9:368.710:018.23:40-0.34:11-0.66:115:08New Moon20Mon
21Tue10:208.910:498.14:25-0.55:00-0.96:125:06New Moon21Tue
22Wed11:048.911:357.95:08-0.55:47-1.06:135:05New Moon22Wed
23Thu11:478.75:49-0.46:32-0.96:145:04Waxing Crescent23Thu
24Fri12:227.612:318.46:30-0.17:18-0.56:155:02Waxing Crescent24Fri
25Sat1:097.21:177.97:130.38:06-0.16:175:01Waxing Crescent25Sat
26Sun2:006.92:067.58:010.79:000.36:184:59Waxing Crescent26Sun
27Mon2:576.63:037.08:571.110:000.76:194:58First Quarter27Mon
28Tue4:006.44:106.710:051.411:030.96:204:57First Quarter28Tue
29Wed5:066.35:216.611:161.66:214:55First Quarter29Wed
30Thu6:106.46:286.712:021.012:211.56:224:54First Quarter30Thu
31Fri7:076.77:256.812:561.01:191.36:234:53Waxing Gibbous31Fri
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 10:07 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 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