Tides Today & Tomorrow in Three Mile Harbor, NY

TIDE TIMES for Monday, August 17, 2026
The tide is currently falling in Three Mile Harbor, NY.
Next low tide : in 3h 12m at 8:44 pm (0.5 ft)
Next high tide (tomorrow) : 2:41 am (2.3 ft)
Sunset today : 7:44 pm
Sunrise tomorrow : 6:00 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8511171
Common Questions About Tides

Three Mile Harbor, NY Tides - Sep 1944

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri9:132.89:353.43:090.03:190.16:157:21Full Moon1Fri
2Sat10:023.010:243.43:57-0.14:12-0.16:167:20Full Moon2Sat
3Sun10:523.211:143.44:44-0.25:05-0.26:177:18Full Moon3Sun
4Mon11:433.35:31-0.25:58-0.26:187:16Waning Gibbous4Mon
5Tue12:053.212:373.46:19-0.16:55-0.16:197:15Waning Gibbous5Tue
6Wed12:593.01:343.47:110.07:550.06:207:13Waning Gibbous6Wed
7Thu1:562.82:323.38:060.28:560.16:217:12Waning Gibbous7Thu
8Fri2:542.63:313.29:040.49:580.36:227:10Third Quarter8Fri
9Sat3:552.44:333.010:050.511:000.46:237:08Third Quarter9Sat
10Sun5:002.35:402.911:080.76:247:06Third Quarter10Sun
11Mon6:082.36:442.912:010.412:110.76:257:05Waning Crescent11Mon
12Tue7:072.47:382.912:580.41:100.76:267:03Waning Crescent12Tue
13Wed7:562.58:242.81:500.42:040.76:277:01Waning Crescent13Wed
14Thu8:412.69:062.82:380.42:530.66:287:00Waning Crescent14Thu
15Fri9:232.79:472.83:200.43:360.66:296:58New Moon15Fri
16Sat10:042.810:252.83:580.44:150.56:306:56New Moon16Sat
17Sun10:442.911:042.84:330.44:510.56:316:55New Moon17Sun
18Mon11:242.911:432.75:060.45:280.56:326:53New Moon18Mon
19Tue12:043.05:390.56:060.56:336:51Waxing Crescent19Tue
20Wed12:232.612:442.96:140.56:480.56:346:49Waxing Crescent20Wed
21Thu1:052.51:252.96:520.67:350.56:356:48Waxing Crescent21Thu
22Fri1:492.42:072.97:350.88:250.66:366:46Waxing Crescent22Fri
23Sat2:352.32:502.88:230.89:170.66:376:44First Quarter23Sat
24Sun3:232.33:372.89:150.910:120.66:386:43First Quarter24Sun
25Mon4:172.24:352.810:110.911:080.56:396:41First Quarter25Mon
26Tue5:202.25:412.911:110.86:406:39First Quarter26Tue
27Wed6:212.46:413.012:040.412:120.76:416:38Waxing Gibbous27Wed
28Thu7:152.67:343.112:590.31:100.56:426:36Waxing Gibbous28Thu
29Fri8:042.88:243.21:510.22:070.26:436:34Waxing Gibbous29Fri
30Sat8:523.09:133.32:420.03:030.06:446:32Full Moon30Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8511171)

Common Questions About Three Mile Harbor, NY Tides

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

Slack tide in Three Mile Harbor, NY is approximately 11:42 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 Three Mile Harbor, NY?

Three Mile Harbor, NY is currently in a transitional phase. Tonight's moon is 27% 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 Three Mile 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 Three Mile Harbor, NY?

Tide predictions for Three Mile 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 Three Mile Harbor, NY?

Tide data for Three Mile Harbor, NY is sourced from NOAA Station #8511171. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8511171.

What is the moon phase in Three Mile Harbor, NY tonight?

Tonight the moon over Three Mile Harbor, NY is Waxing Crescent (27% illuminated). This places Three Mile 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