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 3h 06m 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 - Mar 1934

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu9:471.010:131.03:59-0.14:28-0.16:275:43Full Moon1Thu
2Fri10:201.010:461.04:39-0.15:02-0.16:255:44Full Moon2Fri
3Sat10:541.011:201.15:19-0.15:35-0.16:245:45Waning Gibbous3Sat
4Sun11:311.011:571.15:57-0.16:06-0.16:225:46Waning Gibbous4Sun
5Mon12:120.96:36-0.16:39-0.16:215:48Waning Gibbous5Mon
6Tue12:411.11:020.97:200.07:180.06:195:49Waning Gibbous6Tue
7Wed1:341.12:010.88:140.18:080.16:185:50Third Quarter7Wed
8Thu2:351.03:050.89:250.19:210.16:165:51Third Quarter8Thu
9Fri3:391.04:120.810:430.110:480.16:145:52Third Quarter9Fri
10Sat4:471.05:240.811:530.16:135:53Waning Crescent10Sat
11Sun5:591.16:360.912:030.112:54-0.16:115:54Waning Crescent11Sun
12Mon7:061.17:381.01:070.01:48-0.26:105:55Waning Crescent12Mon
13Tue8:031.28:311.12:04-0.22:38-0.36:085:56Waning Crescent13Tue
14Wed8:531.29:191.22:59-0.23:26-0.36:065:57New Moon14Wed
15Thu9:401.210:041.23:50-0.34:12-0.46:055:58New Moon15Thu
16Fri10:251.210:471.24:39-0.34:55-0.36:036:00New Moon16Fri
17Sat11:101.111:301.25:25-0.35:35-0.36:016:01Waxing Crescent17Sat
18Sun11:551.06:08-0.26:13-0.16:006:02Waxing Crescent18Sun
19Mon12:141.112:431.06:50-0.16:500.05:586:03Waxing Crescent19Mon
20Tue12:591.11:320.97:340.17:290.15:566:04Waxing Crescent20Tue
21Wed1:461.02:240.88:230.28:130.35:556:05First Quarter21Wed
22Thu2:360.93:170.89:220.39:110.45:536:06First Quarter22Thu
23Fri3:280.94:100.810:290.410:220.45:516:07First Quarter23Fri
24Sat4:220.95:080.811:310.311:300.45:506:08First Quarter24Sat
25Sun5:220.96:080.812:250.35:486:09Waxing Gibbous25Sun
26Mon6:230.97:030.912:270.31:110.25:476:10Waxing Gibbous26Mon
27Tue7:160.97:490.91:180.21:530.15:456:11Waxing Gibbous27Tue
28Wed8:011.08:291.02:040.12:330.05:436:12Waxing Gibbous28Wed
29Thu8:411.09:051.12:490.03:120.05:426:13Full Moon29Thu
30Fri9:181.09:401.13:330.03:50-0.15:406:14Full Moon30Fri
31Sat9:551.010:151.24:16-0.14:28-0.15:386:15Full Moon31Sat
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