Tides Today & Tomorrow in Bay Shore, NY

TIDE TIMES for Wednesday, August 19, 2026
The tide is currently rising in Bay Shore, NY.
Next low tide : 10:30 pm (0.5 ft)
Next high tide : in 24m at 3:58 pm (1.1 ft)
Sunset today : 7:45 pm
Sunrise tomorrow : 6:07 am
Moon phase : First Quarter (46% illuminated)
Tide Station Location : Station #8515102
Common Questions About Tides

Bay Shore, NY Tides - Dec 1933

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri9:051.29:321.03:000.13:520.06:574:26Full Moon1Fri
2Sat9:421.210:120.93:410.14:340.06:584:26Full Moon2Sat
3Sun10:181.110:530.94:220.15:140.06:594:26Full Moon3Sun
4Mon10:541.111:350.95:010.25:520.17:004:25Waning Gibbous4Mon
5Tue11:311.15:390.26:290.17:014:25Waning Gibbous5Tue
6Wed12:190.912:091.06:160.37:060.27:024:25Waning Gibbous6Wed
7Thu1:060.812:511.06:530.37:440.27:034:25Waning Gibbous7Thu
8Fri1:540.81:381.07:350.48:270.27:044:25Third Quarter8Fri
9Sat2:400.92:280.98:280.49:170.27:054:25Third Quarter9Sat
10Sun3:250.93:190.99:370.410:120.27:054:25Third Quarter10Sun
11Mon4:120.94:130.910:490.311:080.27:064:25Third Quarter11Mon
12Tue5:031.05:140.911:530.27:074:25Waning Crescent12Tue
13Wed6:001.16:200.912:020.112:520.17:084:26Waning Crescent13Wed
14Thu6:581.27:220.912:540.01:470.07:094:26Waning Crescent14Thu
15Fri7:531.38:191.01:46-0.12:41-0.27:094:26New Moon15Fri
16Sat8:451.39:131.02:40-0.23:36-0.27:104:26New Moon16Sat
17Sun9:371.310:061.03:36-0.24:30-0.37:114:27New Moon17Sun
18Mon10:301.311:021.04:32-0.25:22-0.37:114:27New Moon18Mon
19Tue11:241.311:591.05:26-0.26:12-0.37:124:27Waxing Crescent19Tue
20Wed12:211.26:19-0.27:02-0.37:124:28Waxing Crescent20Wed
21Thu12:591.01:181.27:13-0.17:53-0.27:134:28Waxing Crescent21Thu
22Fri1:581.02:151.18:120.18:47-0.17:144:29First Quarter22Fri
23Sat2:541.03:101.09:170.19:430.07:144:29First Quarter23Sat
24Sun3:471.04:020.910:240.210:390.07:144:30First Quarter24Sun
25Mon4:391.04:570.911:280.211:320.17:154:30First Quarter25Mon
26Tue5:321.05:540.812:250.27:154:31Waxing Gibbous26Tue
27Wed6:261.06:510.812:210.11:160.17:164:32Waxing Gibbous27Wed
28Thu7:171.07:440.81:070.12:020.17:164:32Waxing Gibbous28Thu
29Fri8:031.18:300.91:510.12:470.07:164:33Waxing Gibbous29Fri
30Sat8:441.19:120.92:340.13:310.07:164:34Full Moon30Sat
31Sun9:231.19:510.93:180.14:130.07:164:35Full Moon31Sun
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 7:14 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 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 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 First Quarter (46% illuminated). This places Bay Shore, 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