Tides Today & Tomorrow in Mattituck Inlet, NY

TIDE TIMES for Friday, August 21, 2026
The tide is currently falling in Mattituck Inlet, NY.
Next low tide (tomorrow) : in 2h 54m at 1:42 am (0.9 ft)
Next high tide (tomorrow) : 7:49 am (4.4 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 - Oct 1940

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue10:386.711:066.34:25-0.44:54-0.65:465:32New Moon1Tue
2Wed11:286.811:576.35:14-0.55:46-0.75:475:31New Moon2Wed
3Thu12:186.86:03-0.46:37-0.65:485:29Waxing Crescent3Thu
4Fri12:486.11:096.76:54-0.37:30-0.55:505:27Waxing Crescent4Fri
5Sat1:415.92:036.47:460.08:25-0.25:515:26Waxing Crescent5Sat
6Sun2:375.62:596.18:420.29:230.15:525:24First Quarter6Sun
7Mon3:355.43:595.89:410.510:230.35:535:22First Quarter7Mon
8Tue4:355.25:005.610:430.611:240.55:545:21First Quarter8Tue
9Wed5:375.26:025.511:470.75:555:19First Quarter9Wed
10Thu6:365.27:015.412:240.512:480.75:565:18Waxing Gibbous10Thu
11Fri7:325.47:565.41:200.51:460.65:575:16Waxing Gibbous11Fri
12Sat8:235.58:465.42:110.42:380.55:585:14Waxing Gibbous12Sat
13Sun9:085.79:315.42:560.43:240.35:595:13Waxing Gibbous13Sun
14Mon9:505.810:135.43:380.34:060.26:005:11Full Moon14Mon
15Tue10:295.910:525.44:180.34:460.26:015:10Full Moon15Tue
16Wed11:075.911:315.34:560.45:240.26:025:08Full Moon16Wed
17Thu11:445.85:330.46:020.26:045:07Full Moon17Thu
18Fri12:105.312:225.86:110.56:400.26:055:05Waning Gibbous18Fri
19Sat12:495.21:005.76:490.67:200.26:065:04Waning Gibbous19Sat
20Sun1:305.11:415.67:300.78:030.36:075:02Waning Gibbous20Sun
21Mon2:155.12:265.58:140.88:490.36:085:01Waning Gibbous21Mon
22Tue3:035.03:165.49:030.99:400.46:094:59Third Quarter22Tue
23Wed3:565.04:115.49:570.910:350.46:104:58Third Quarter23Wed
24Thu4:525.15:105.410:570.811:320.36:114:57Third Quarter24Thu
25Fri5:495.36:105.411:580.66:134:55Third Quarter25Fri
26Sat6:455.57:095.612:290.212:580.36:144:54Waning Crescent26Sat
27Sun7:405.98:065.71:240.01:550.06:154:52Waning Crescent27Sun
28Mon8:336.29:015.92:18-0.22:50-0.36:164:51Waning Crescent28Mon
29Tue9:246.59:546.03:10-0.33:43-0.66:174:50New Moon29Tue
30Wed10:146.710:456.04:00-0.44:35-0.86:184:49New Moon30Wed
31Thu11:056.711:366.04:50-0.45:26-0.86:204:47New Moon31Thu
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 4:45 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 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