Tides Today & Tomorrow in Montauk Harbor, NY

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently rising in Montauk Harbor, NY.
Next low tide : 8:10 am (0.5 ft)
Next high tide : in 52m at 1:38 am (1.8 ft)
Sunset today : 7:42 pm
Sunrise tomorrow : 6:00 am
Moon phase : First Quarter (36% illuminated)
Tide Station Location : Station #8510502
Common Questions About Tides

Montauk Harbor, NY Tides - Feb 1940

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu3:002.03:241.59:50-0.110:03-0.16:595:03Third Quarter1Thu
2Fri4:071.94:311.510:52-0.111:030.06:585:04Waning Crescent2Fri
3Sat5:071.95:291.511:51-0.16:575:05Waning Crescent3Sat
4Sun5:591.96:191.512:010.012:45-0.16:565:07Waning Crescent4Sun
5Mon6:461.97:051.612:550.01:34-0.16:555:08Waning Crescent5Mon
6Tue7:301.97:491.71:44-0.12:18-0.26:545:09New Moon6Tue
7Wed8:111.98:311.72:28-0.12:57-0.26:535:10New Moon7Wed
8Thu8:511.99:121.83:08-0.13:33-0.16:525:12New Moon8Thu
9Fri9:311.99:541.83:46-0.14:09-0.16:505:13New Moon9Fri
10Sat10:121.810:381.84:250.04:44-0.16:495:14Waxing Crescent10Sat
11Sun10:541.811:231.85:050.05:220.06:485:15Waxing Crescent11Sun
12Mon11:381.75:500.16:020.16:475:17Waxing Crescent12Mon
13Tue12:081.712:231.66:380.16:450.26:455:18Waxing Crescent13Tue
14Wed12:541.71:091.57:280.27:300.26:445:19First Quarter14Wed
15Thu1:411.71:581.48:210.28:190.36:435:20First Quarter15Thu
16Fri2:341.72:551.49:160.29:130.36:425:21First Quarter16Fri
17Sat3:341.73:551.410:120.110:100.26:405:23First Quarter17Sat
18Sun4:311.84:501.511:070.011:060.16:395:24Waxing Gibbous18Sun
19Mon5:221.95:391.611:59-0.16:375:25Waxing Gibbous19Mon
20Tue6:092.16:261.712:010.012:51-0.26:365:26Waxing Gibbous20Tue
21Wed6:562.27:141.912:56-0.21:40-0.46:355:28Waxing Gibbous21Wed
22Thu7:432.38:022.01:50-0.42:28-0.56:335:29Full Moon22Thu
23Fri8:302.38:522.22:42-0.53:15-0.56:325:30Full Moon23Fri
24Sat9:192.39:422.33:33-0.64:02-0.56:305:31Full Moon24Sat
25Sun10:092.210:352.34:26-0.54:51-0.56:295:32Waning Gibbous25Sun
26Mon11:022.011:312.25:22-0.55:43-0.46:275:33Waning Gibbous26Mon
27Tue11:581.96:21-0.36:39-0.36:265:35Waning Gibbous27Tue
28Wed12:302.212:551.77:22-0.27:38-0.16:245:36Third Quarter28Wed
29Thu1:292.11:561.68:23-0.18:390.06:235:37Third Quarter29Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8510502)

Common Questions About Montauk Harbor, NY Tides

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

Slack tide in Montauk Harbor, NY is approximately 4:54 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 Montauk Harbor, NY?

Montauk Harbor, NY is currently in a transitional phase. Tonight's moon is 36% 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 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 (36% illuminated). This places Montauk Harbor, 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