Tides Today & Tomorrow in Bay Shore, NY

TIDE TIMES for Saturday, July 18, 2026
The tide is currently falling in Bay Shore, NY.
Next low tide : in 4h 29m at 8:22 pm (0.1 ft)
Next high tide (tomorrow) : 2:21 am (1.2 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:37 am
Moon phase : Waxing Crescent (23% illuminated)
Tide Station Location : Station #8515102
Common Questions About Tides

Bay Shore, NY Tides - Jul 1980

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:281.31:051.17:21-0.17:250.15:258:28Waning Gibbous1Tue
2Wed1:191.32:001.18:05-0.18:160.15:268:27Waning Gibbous2Wed
3Thu2:151.22:571.18:53-0.19:140.25:268:27Third Quarter3Thu
4Fri3:131.23:531.19:480.010:210.25:278:27Third Quarter4Fri
5Sat4:101.14:481.210:470.011:310.25:278:27Third Quarter5Sat
6Sun5:071.15:451.211:480.05:288:26Third Quarter6Sun
7Mon6:081.16:451.212:380.212:460.05:298:26Waning Crescent7Mon
8Tue7:111.17:451.31:390.11:420.05:298:26Waning Crescent8Tue
9Wed8:141.18:411.32:350.02:350.05:308:25Waning Crescent9Wed
10Thu9:101.19:321.33:280.03:270.05:318:25New Moon10Thu
11Fri10:011.110:191.34:190.04:180.05:318:25New Moon11Fri
12Sat10:501.111:041.35:09-0.15:070.15:328:24New Moon12Sat
13Sun11:371.111:481.25:55-0.15:540.15:338:24New Moon13Sun
14Mon12:241.16:370.06:370.15:348:23Waxing Crescent14Mon
15Tue12:321.21:111.17:170.07:190.25:348:22Waxing Crescent15Tue
16Wed1:161.11:591.07:550.18:000.35:358:22Waxing Crescent16Wed
17Thu2:011.12:461.08:330.28:430.45:368:21Waxing Crescent17Thu
18Fri2:471.03:321.09:130.29:330.55:378:21First Quarter18Fri
19Sat3:321.04:161.09:580.310:300.55:388:20First Quarter19Sat
20Sun4:170.94:591.010:480.411:320.55:388:19First Quarter20Sun
21Mon5:040.95:451.011:420.45:398:18First Quarter21Mon
22Tue5:550.96:351.112:310.512:350.45:408:18Waxing Gibbous22Tue
23Wed6:540.97:291.11:260.41:260.35:418:17Waxing Gibbous23Wed
24Thu7:530.98:201.22:170.32:160.35:428:16Waxing Gibbous24Thu
25Fri8:471.09:081.23:050.23:040.25:438:15Waxing Gibbous25Fri
26Sat9:351.09:531.33:540.13:540.15:448:14Full Moon26Sat
27Sun10:211.110:381.34:420.04:440.15:458:13Full Moon27Sun
28Mon11:071.111:241.35:29-0.15:350.05:468:12Full Moon28Mon
29Tue11:551.26:15-0.26:240.05:478:11Waning Gibbous29Tue
30Wed12:131.312:461.27:00-0.27:140.05:488:10Waning Gibbous30Wed
31Thu1:051.31:411.27:45-0.28:050.05:488:09Waning Gibbous31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8515102)

Common Questions About Bay Shore, NY Tides

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What time does the tide turn (slack tide) in Bay Shore, NY today?

Slack tide in Bay Shore, NY is approximately 11:21 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 Bay Shore, NY?

Bay Shore, NY is currently in a transitional phase. Tonight's moon is 23% 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 Bay Shore, 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 Bay Shore, NY?

Tide predictions for Bay Shore, 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 Bay Shore, NY?

Tide data for Bay Shore, NY is sourced from NOAA Station #8515102. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8515102.

What is the moon phase in Bay Shore, NY tonight?

Tonight the moon over Bay Shore, NY is Waxing Crescent (23% illuminated). This places Bay Shore, 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