Tides Today & Tomorrow in Montauk Harbor, NY

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently falling in Montauk Harbor, NY.
Next low tide : in 5h 32m at 9:40 am (0.5 ft)
Next high tide : 3:40 pm (2.2 ft)
Sunset today : 8:14 pm
Sunrise tomorrow : 5:33 am
Moon phase : First Quarter (52% illuminated)
Tide Station Location : Station #8510502
Common Questions About Tides

Montauk Harbor, NY Tides - Sep 1983

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu4:011.74:342.310:250.611:340.36:137:21Third Quarter1Thu
2Fri5:081.85:372.411:270.56:147:20Waning Crescent2Fri
3Sat6:061.96:342.512:310.212:280.46:157:18Waning Crescent3Sat
4Sun6:592.07:272.61:260.11:280.26:167:16Waning Crescent4Sun
5Mon7:512.28:182.62:190.02:260.16:177:15New Moon5Mon
6Tue8:422.39:092.63:09-0.13:220.06:187:13New Moon6Tue
7Wed9:332.49:592.63:57-0.14:15-0.16:197:11New Moon7Wed
8Thu10:252.510:492.44:43-0.15:08-0.16:207:10New Moon8Thu
9Fri11:162.611:412.35:30-0.16:030.06:217:08Waxing Crescent9Fri
10Sat12:102.66:200.17:010.16:227:06Waxing Crescent10Sat
11Sun12:362.11:052.57:120.28:010.26:237:05Waxing Crescent11Sun
12Mon1:321.92:012.48:070.49:000.36:247:03First Quarter12Mon
13Tue2:311.82:582.39:050.510:010.46:257:01First Quarter13Tue
14Wed3:331.74:012.210:060.611:010.46:266:59First Quarter14Wed
15Thu4:391.75:052.111:080.711:570.56:276:58First Quarter15Thu
16Fri5:411.76:032.112:060.76:286:56Waxing Gibbous16Fri
17Sat6:321.86:522.112:480.512:590.66:296:54Waxing Gibbous17Sat
18Sun7:161.97:352.21:340.51:470.66:306:53Waxing Gibbous18Sun
19Mon7:582.08:162.22:160.42:300.56:316:51Waxing Gibbous19Mon
20Tue8:392.18:562.22:530.43:100.46:326:49Full Moon20Tue
21Wed9:192.29:332.23:270.33:470.46:336:47Full Moon21Wed
22Thu9:572.310:102.14:000.34:250.36:346:46Full Moon22Thu
23Fri10:342.310:472.14:330.35:040.36:356:44Full Moon23Fri
24Sat11:112.311:252.05:070.35:460.36:366:42Waning Gibbous24Sat
25Sun11:472.35:440.46:320.36:376:41Waning Gibbous25Sun
26Mon12:061.912:252.36:250.57:230.36:386:39Waning Gibbous26Mon
27Tue12:511.91:082.37:130.58:180.36:396:37Waning Gibbous27Tue
28Wed1:411.81:592.38:070.69:140.36:406:36Third Quarter28Wed
29Thu2:361.82:592.29:060.610:130.36:416:34Third Quarter29Thu
30Fri3:401.84:112.310:100.611:120.36:426:32Third Quarter30Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8510502)

Common Questions About Montauk Harbor, NY Tides

Show All
What time does the tide turn (slack tide) in Montauk Harbor, NY today?

Slack tide in Montauk Harbor, NY is approximately 12:40 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 Montauk Harbor, NY?

Montauk Harbor, NY is currently in a neap phase. Tonight's moon is 52% 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 near their weekly minimum.

What datum are Montauk Harbor, 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 Montauk Harbor, NY?

Tide predictions for Montauk Harbor, 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 Montauk Harbor, NY?

Tide data for Montauk Harbor, NY is sourced from NOAA Station #8510502. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8510502.

What is the moon phase in Montauk Harbor, NY tonight?

Tonight the moon over Montauk Harbor, NY is First Quarter (52% illuminated). This places Montauk Harbor, NY in a neap tide cycle, so tidal ranges are near their weekly minimum 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