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 1h 22m 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 - Apr 1929

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon3:376.74:346.110:251.110:281.75:386:19Third Quarter1Mon
2Tue4:346.55:426.111:311.311:341.95:366:20Third Quarter2Tue
3Wed5:436.66:526.312:401.35:356:21Third Quarter3Wed
4Thu7:006.87:486.712:461.81:391.25:336:22Waning Crescent4Thu
5Fri8:007.28:317.21:491.42:270.95:316:23Waning Crescent5Fri
6Sat8:467.69:077.72:411.03:080.55:306:24Waning Crescent6Sat
7Sun9:258.09:408.23:260.43:460.25:286:25Waning Crescent7Sun
8Mon10:038.210:158.64:08-0.14:22-0.15:276:26New Moon8Mon
9Tue10:428.410:529.04:49-0.54:59-0.45:256:27New Moon9Tue
10Wed11:248.411:339.25:31-0.85:38-0.55:236:28New Moon10Wed
11Thu12:078.36:13-0.96:19-0.45:226:29Waxing Crescent11Thu
12Fri12:169.212:538.16:58-0.87:03-0.25:206:30Waxing Crescent12Fri
13Sat1:029.11:437.87:47-0.57:520.25:196:31Waxing Crescent13Sat
14Sun1:538.72:387.48:42-0.18:480.65:176:32Waxing Crescent14Sun
15Mon2:498.33:417.19:490.49:561.05:166:33First Quarter15Mon
16Tue3:537.84:566.911:070.711:191.25:146:35First Quarter16Tue
17Wed5:137.46:207.012:250.85:126:36First Quarter17Wed
18Thu6:467.37:337.312:441.11:320.75:116:37Waxing Gibbous18Thu
19Fri7:597.58:317.71:560.72:300.45:096:38Waxing Gibbous19Fri
20Sat8:577.69:218.12:550.33:210.25:086:39Waxing Gibbous20Sat
21Sun9:467.710:058.33:48-0.14:060.05:066:40Waxing Gibbous21Sun
22Mon10:307.710:458.44:35-0.44:47-0.15:056:41Full Moon22Mon
23Tue11:117.611:228.35:18-0.55:240.05:046:42Full Moon23Tue
24Wed11:507.511:558.15:56-0.55:570.15:026:43Full Moon24Wed
25Thu12:267.36:31-0.36:270.45:016:44Full Moon25Thu
26Fri12:267.91:017.17:03-0.16:560.74:596:45Waning Gibbous26Fri
27Sat12:577.61:366.97:330.27:291.04:586:46Waning Gibbous27Sat
28Sun1:327.43:156.79:080.59:081.35:577:47Waning Gibbous28Sun
29Mon3:127.23:586.69:490.89:551.55:557:48Waning Gibbous29Mon
30Tue3:597.14:466.510:381.110:481.75:547:49Third Quarter30Tue
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