Tides Today & Tomorrow in Mattituck Inlet, NY

TIDE TIMES for Friday, August 21, 2026
The tide is currently rising in Mattituck Inlet, NY.
Next low tide (tomorrow) : 1:42 am (0.9 ft)
Next high tide : in 4h 55m at 7:11 pm (5.2 ft)
Sunset today : 7:40 pm
Sunrise tomorrow : 6:06 am
Moon phase : First Quarter (65% illuminated)
Tide Station Location : Station #8512668
Common Questions About Tides

Mattituck Inlet, NY Tides - Aug 1941

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri6:325.26:586.012:220.212:380.45:458:07First Quarter1Fri
2Sat7:345.27:586.01:230.21:390.45:468:05Waxing Gibbous2Sat
3Sun8:345.28:576.12:250.12:390.45:478:04Waxing Gibbous3Sun
4Mon9:335.39:546.13:230.03:370.35:488:03Waxing Gibbous4Mon
5Tue10:285.510:476.24:19-0.14:330.25:498:02Full Moon5Tue
6Wed11:205.711:386.25:10-0.25:250.15:508:01Full Moon6Wed
7Thu12:095.85:59-0.36:150.15:518:00Full Moon7Thu
8Fri12:276.112:565.96:45-0.37:040.15:527:58Full Moon8Fri
9Sat1:146.01:425.97:29-0.27:510.25:537:57Waning Gibbous9Sat
10Sun2:005.82:265.88:120.08:370.35:547:56Waning Gibbous10Sun
11Mon2:465.53:115.78:560.29:240.45:557:55Waning Gibbous11Mon
12Tue3:335.33:575.69:400.410:130.65:567:53Waning Gibbous12Tue
13Wed4:215.04:445.510:270.711:030.75:577:52Third Quarter13Wed
14Thu5:114.85:335.311:150.911:550.85:587:51Third Quarter14Thu
15Fri6:044.76:245.312:061.05:597:49Third Quarter15Fri
16Sat6:574.67:175.312:480.812:591.16:007:48Third Quarter16Sat
17Sun7:514.78:095.41:420.81:531.06:017:46Waning Crescent17Sun
18Mon8:434.88:595.52:340.62:450.96:027:45Waning Crescent18Mon
19Tue9:335.19:485.73:230.43:360.76:037:43Waning Crescent19Tue
20Wed10:205.310:355.94:100.24:240.56:047:42Waning Crescent20Wed
21Thu11:065.611:216.04:560.05:110.36:057:40New Moon21Thu
22Fri11:505.95:39-0.25:570.16:067:39New Moon22Fri
23Sat12:076.212:356.16:23-0.36:43-0.16:077:37New Moon23Sat
24Sun12:536.21:206.37:07-0.47:31-0.26:087:36Waxing Crescent24Sun
25Mon1:406.12:066.47:52-0.38:19-0.26:097:34Waxing Crescent25Mon
26Tue2:296.02:546.48:38-0.29:10-0.16:107:33Waxing Crescent26Tue
27Wed3:205.83:466.39:280.010:050.06:117:31Waxing Crescent27Wed
28Thu4:155.64:416.110:220.211:020.16:127:30First Quarter28Thu
29Fri5:135.45:396.011:190.46:137:28First Quarter29Fri
30Sat6:155.26:415.912:040.312:210.56:147:27First Quarter30Sat
31Sun7:175.27:435.91:070.31:240.66:157:25Waxing Gibbous31Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8512668)

Common Questions About Mattituck Inlet, NY Tides

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

Slack tide in Mattituck Inlet, NY is approximately 10:26 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 Mattituck Inlet, NY?

Mattituck Inlet, 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 Mattituck Inlet, 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 Mattituck Inlet, NY?

Tide predictions for Mattituck Inlet, 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 Mattituck Inlet, NY?

Tide data for Mattituck Inlet, NY is sourced from NOAA Station #8512668. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8512668.

What is the moon phase in Mattituck Inlet, NY tonight?

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