40.9633’ N, 73.0400’ W

Mount Sinai, NY

50°
H -°
L 47°
NE
8mph
Low tide
1:20 am

Tides Today & Tomorrow in Mount Sinai, NY

TIDE TIMES for Monday, October 19, 2026
The tide is currently falling in Mount Sinai, NY.
Next low tide (tomorrow) : in 3h 36m at 1:20 am (1.1 ft)
Next high tide (tomorrow) : 7:18 am (5.5 ft)
Sunset today : 6:05 pm
Sunrise tomorrow : 7:08 am
Moon phase : First Quarter (59% illuminated)
Tide Station Location : Station #8514421
Common Questions About Tides

Mount Sinai, NY Tides - Aug 1900

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed2:385.83:006.29:010.89:350.94:477:08First Quarter1Wed
2Thu3:235.63:446.19:441.010:241.04:487:07First Quarter2Thu
3Fri4:125.44:336.010:331.111:181.04:497:06First Quarter3Fri
4Sat5:065.35:256.011:251.24:507:05First Quarter4Sat
5Sun6:035.36:226.112:141.012:221.24:517:04Waxing Gibbous5Sun
6Mon7:005.47:196.31:100.91:191.14:527:03Waxing Gibbous6Mon
7Tue7:565.68:136.52:050.62:150.94:537:01Waxing Gibbous7Tue
8Wed8:486.09:056.82:580.43:090.64:547:00Waxing Gibbous8Wed
9Thu9:376.39:547.13:470.04:010.24:556:59Full Moon9Thu
10Fri10:256.710:437.34:35-0.24:52-0.14:566:58Full Moon10Fri
11Sat11:127.011:327.35:22-0.55:43-0.34:576:56Full Moon11Sat
12Sun12:017.36:08-0.66:34-0.44:586:55Waning Gibbous12Sun
13Mon12:237.312:507.46:56-0.67:26-0.44:596:54Waning Gibbous13Mon
14Tue1:147.11:417.47:45-0.48:21-0.35:006:52Waning Gibbous14Tue
15Wed2:086.82:357.38:36-0.29:18-0.15:016:51Waning Gibbous15Wed
16Thu3:046.53:317.19:320.110:190.25:026:50Third Quarter16Thu
17Fri4:046.24:316.810:310.411:220.45:036:48Third Quarter17Fri
18Sat5:075.95:346.611:340.65:046:47Third Quarter18Sat
19Sun6:125.86:396.512:260.512:370.85:056:45Waning Crescent19Sun
20Mon7:175.87:416.51:280.51:400.85:066:44Waning Crescent20Mon
21Tue8:156.08:376.52:260.52:380.75:076:42Waning Crescent21Tue
22Wed9:076.19:256.53:170.43:300.65:086:41Waning Crescent22Wed
23Thu9:526.310:096.64:030.34:160.55:096:39New Moon23Thu
24Fri10:336.410:496.54:440.34:590.45:106:38New Moon24Fri
25Sat11:126.511:286.55:220.35:390.45:116:36New Moon25Sat
26Sun11:496.55:580.36:170.45:126:35New Moon26Sun
27Mon12:066.312:256.56:330.46:550.55:136:33Waxing Crescent27Mon
28Tue12:446.21:026.57:080.67:330.65:146:32Waxing Crescent28Tue
29Wed1:236.01:406.47:440.78:140.75:156:30Waxing Crescent29Wed
30Thu2:045.92:206.38:230.98:570.85:166:28Waxing Crescent30Thu
31Fri2:485.73:036.29:051.19:440.95:176:27First Quarter31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8514421)

Common Questions About Mount Sinai, NY Tides

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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 59% 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 (59% 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