Tides Today & Tomorrow in Mount Sinai, NY

TIDE TIMES for Wednesday, August 19, 2026
The tide is currently falling in Mount Sinai, NY.
Next low tide : in 3h 42m at 11:59 pm (1.0 ft)
Next high tide (tomorrow) : 5:47 am (5.3 ft)
Sunset today : 7:45 pm
Sunrise tomorrow : 6:06 am
Moon phase : First Quarter (46% illuminated)
Tide Station Location : Station #8514421
Common Questions About Tides

Mount Sinai, NY Tides - Jul 2040

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun5:326.16:066.512:060.35:248:28Third Quarter1Sun
2Mon6:335.97:046.512:480.51:020.55:248:27Third Quarter2Mon
3Tue7:345.78:006.51:480.51:570.75:258:27Waning Crescent3Tue
4Wed8:335.68:536.52:460.42:500.85:268:27Waning Crescent4Wed
5Thu9:275.69:426.53:390.43:410.95:268:27Waning Crescent5Thu
6Fri10:165.710:276.54:280.34:290.95:278:26Waning Crescent6Fri
7Sat11:015.811:096.55:130.35:140.95:278:26New Moon7Sat
8Sun11:435.911:496.45:540.35:570.95:288:26New Moon8Sun
9Mon12:235.96:330.36:370.95:298:25New Moon9Mon
10Tue12:296.41:025.97:110.37:170.95:308:25New Moon10Tue
11Wed1:086.31:416.07:480.37:560.95:308:24Waxing Crescent11Wed
12Thu1:476.32:206.08:250.48:370.95:318:24Waxing Crescent12Thu
13Fri2:276.22:596.09:030.49:190.95:328:23Waxing Crescent13Fri
14Sat3:086.13:396.19:410.510:030.95:338:23Waxing Crescent14Sat
15Sun3:516.04:206.210:220.610:510.85:338:22First Quarter15Sun
16Mon4:375.85:056.211:060.711:430.85:348:22First Quarter16Mon
17Tue5:285.75:546.411:540.85:358:21First Quarter17Tue
18Wed6:245.66:486.512:390.712:470.85:368:20First Quarter18Wed
19Thu7:245.67:466.71:380.61:440.85:378:19Waxing Gibbous19Thu
20Fri8:255.78:446.92:370.42:440.75:388:19Waxing Gibbous20Fri
21Sat9:245.99:427.13:360.13:430.55:388:18Waxing Gibbous21Sat
22Sun10:216.110:397.34:34-0.14:420.35:398:17Full Moon22Sun
23Mon11:166.411:347.45:29-0.35:390.15:408:16Full Moon23Mon
24Tue12:106.66:22-0.56:35-0.15:418:15Full Moon24Tue
25Wed12:297.41:046.77:14-0.57:31-0.15:428:14Waning Gibbous25Wed
26Thu1:237.31:576.88:05-0.58:26-0.15:438:14Waning Gibbous26Thu
27Fri2:187.12:516.88:56-0.39:230.15:448:13Waning Gibbous27Fri
28Sat3:126.83:446.89:47-0.110:200.25:458:12Waning Gibbous28Sat
29Sun4:076.44:386.710:390.211:190.45:468:11Third Quarter29Sun
30Mon5:046.05:336.611:320.55:478:10Third Quarter30Mon
31Tue6:025.76:296.412:180.612:270.85:488:08Third Quarter31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8514421)

Common Questions About Mount Sinai, NY Tides

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What time does the tide turn (slack tide) in Mount Sinai, NY today?

Slack tide in Mount Sinai, NY is approximately 2:53 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 Mount Sinai, NY?

Mount Sinai, NY is currently in a neap phase. Tonight's moon is 46% 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 Mount Sinai, 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 Mount Sinai, NY?

Tide predictions for Mount Sinai, 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 Mount Sinai, NY?

Tide data for Mount Sinai, NY is sourced from NOAA Station #8514421. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8514421.

What is the moon phase in Mount Sinai, NY tonight?

Tonight the moon over Mount Sinai, NY is First Quarter (46% illuminated). This places Mount Sinai, 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