Tides Today & Tomorrow in Mount Sinai, NY

TIDE TIMES for Saturday, August 15, 2026
The tide is currently rising in Mount Sinai, NY.
Next low tide (tomorrow) : 8:50 am (0.2 ft)
Next high tide (tomorrow) : in 4h 14m at 2:21 am (6.5 ft)
Sunset today : 7:50 pm
Sunrise tomorrow : 6:02 am
Moon phase : Waxing Crescent (11% illuminated)
Tide Station Location : Station #8514421
Common Questions About Tides

Mount Sinai, NY Tides - Jul 2021

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu5:165.85:486.111:490.75:248:28Third Quarter1Thu
2Fri6:135.66:426.112:280.912:400.95:248:27Third Quarter2Fri
3Sat7:105.47:346.11:240.91:321.05:258:27Third Quarter3Sat
4Sun8:065.48:256.22:190.82:221.15:258:27Waning Crescent4Sun
5Mon9:005.49:136.23:100.73:121.15:268:27Waning Crescent5Mon
6Tue9:495.59:586.33:580.63:591.15:278:27Waning Crescent6Tue
7Wed10:345.610:416.44:430.54:441.05:278:26Waning Crescent7Wed
8Thu11:165.711:216.45:250.45:281.05:288:26New Moon8Thu
9Fri11:575.86:060.36:100.95:298:25New Moon9Fri
10Sat12:016.412:375.96:450.26:510.85:298:25New Moon10Sat
11Sun12:416.51:166.07:240.27:320.75:308:25New Moon11Sun
12Mon1:226.51:576.18:040.28:140.75:318:24Waxing Crescent12Mon
13Tue2:046.52:386.28:440.28:590.65:318:24Waxing Crescent13Tue
14Wed2:486.43:226.39:260.29:470.65:328:23Waxing Crescent14Wed
15Thu3:356.44:086.510:110.210:400.55:338:22Waxing Crescent15Thu
16Fri4:266.24:586.611:000.311:370.55:348:22First Quarter16Fri
17Sat5:216.05:526.711:520.45:358:21First Quarter17Sat
18Sun6:215.96:506.812:370.412:490.55:358:20First Quarter18Sun
19Mon7:245.87:506.91:390.31:490.55:368:20Waxing Gibbous19Mon
20Tue8:275.98:507.12:410.22:490.55:378:19Waxing Gibbous20Tue
21Wed9:286.09:487.23:410.03:490.45:388:18Waxing Gibbous21Wed
22Thu10:266.210:447.34:39-0.24:480.35:398:17Full Moon22Thu
23Fri11:206.311:387.25:33-0.35:430.25:408:17Full Moon23Fri
24Sat12:136.46:24-0.36:370.15:418:16Full Moon24Sat
25Sun12:307.11:036.57:14-0.37:280.25:428:15Full Moon25Sun
26Mon1:207.01:536.58:01-0.18:190.35:438:14Waning Gibbous26Mon
27Tue2:106.72:416.58:470.09:100.55:438:13Waning Gibbous27Tue
28Wed2:596.43:296.49:330.310:010.65:448:12Waning Gibbous28Wed
29Thu3:496.14:176.310:180.510:530.85:458:11Third Quarter29Thu
30Fri4:395.85:056.211:060.811:470.95:468:10Third Quarter30Fri
31Sat5:325.55:556.111:551.15:478:09Third Quarter31Sat
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 5:35 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 spring phase. Tonight's moon is 11% 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 maximum.

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 Waxing Crescent (11% illuminated). This places Mount Sinai, NY in a spring tide cycle, so tidal ranges are near their weekly maximum 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