Tides Today & Tomorrow in Bay Shore, NY

TIDE TIMES for Sunday, August 9, 2026
The tide is currently falling in Bay Shore, NY.
Next low tide (tomorrow) : in 3h 38m at 2:50 am (0.1 ft)
Next high tide (tomorrow) : 8:30 am (1.0 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 5:57 am
Moon phase : Waning Crescent (13% illuminated)
Tide Station Location : Station #8515102
Common Questions About Tides

Bay Shore, NY Tides - Oct 1949

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat5:190.95:431.111:520.45:495:35Waxing Gibbous1Sat
2Sun6:211.06:421.112:360.312:480.45:505:34Waxing Gibbous2Sun
3Mon7:161.07:331.11:220.21:360.35:515:32Waxing Gibbous3Mon
4Tue8:011.18:161.12:030.22:200.35:525:31Waxing Gibbous4Tue
5Wed8:401.18:541.12:420.23:030.25:535:29Full Moon5Wed
6Thu9:151.29:311.13:180.13:440.25:545:27Full Moon6Thu
7Fri9:491.210:061.13:540.14:240.25:555:26Full Moon7Fri
8Sat10:211.210:411.14:290.25:030.25:565:24Full Moon8Sat
9Sun10:511.211:161.05:020.25:390.25:575:22Waning Gibbous9Sun
10Mon11:211.111:521.05:330.36:150.35:585:21Waning Gibbous10Mon
11Tue11:521.16:040.36:510.45:595:19Waning Gibbous11Tue
12Wed12:330.912:301.16:340.47:310.46:005:18Waning Gibbous12Wed
13Thu1:240.91:211.17:100.58:250.56:015:16Third Quarter13Thu
14Fri2:230.82:221.17:590.59:370.56:025:15Third Quarter14Fri
15Sat3:220.93:261.19:150.510:490.46:045:13Third Quarter15Sat
16Sun4:220.94:311.110:420.511:500.36:055:12Third Quarter16Sun
17Mon5:251.05:381.111:530.36:065:10Waning Crescent17Mon
18Tue6:271.16:421.212:420.212:540.26:075:09Waning Crescent18Tue
19Wed7:231.27:391.21:300.01:490.06:085:07Waning Crescent19Wed
20Thu8:131.38:301.32:17-0.12:43-0.16:095:06New Moon20Thu
21Fri9:011.49:191.33:04-0.23:37-0.26:105:04New Moon21Fri
22Sat9:481.410:091.23:52-0.24:30-0.26:115:03New Moon22Sat
23Sun10:361.411:001.24:41-0.25:21-0.26:125:01Waxing Crescent23Sun
24Mon11:271.411:551.15:28-0.16:11-0.16:145:00Waxing Crescent24Mon
25Tue12:211.36:160.07:030.06:154:59Waxing Crescent25Tue
26Wed12:541.01:201.27:060.27:580.16:164:57Waxing Crescent26Wed
27Thu1:571.02:201.28:020.39:010.36:174:56First Quarter27Thu
28Fri2:581.03:181.19:090.410:080.36:184:55First Quarter28Fri
29Sat3:570.94:151.010:220.511:100.36:194:53First Quarter29Sat
30Sun4:540.95:111.011:280.56:204:52Waxing Gibbous30Sun
31Mon5:501.06:071.012:020.312:230.46:224:51Waxing Gibbous31Mon
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 5:40 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 Bay Shore, NY?

Bay Shore, NY is currently in a spring phase. Tonight's moon is 13% 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 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 Waning Crescent (13% illuminated). This places Bay Shore, 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