Tides Today & Tomorrow in Bay Shore, NY

TIDE TIMES for Friday, July 31, 2026
The tide is currently falling in Bay Shore, NY.
Next low tide : in 3h 37m at 6:16 am (0.1 ft)
Next high tide : 11:57 am (1.0 ft)
Sunset today : 8:09 pm
Sunrise tomorrow : 5:48 am
Moon phase : Waning Gibbous (96% illuminated)
Tide Station Location : Station #8515102
Common Questions About Tides

Bay Shore, NY Tides - Oct 1967

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:331.18:471.32:440.12:520.16:486:36Waning Crescent1Sun
2Mon9:211.29:361.33:300.03:450.06:506:34New Moon2Mon
3Tue10:071.310:231.34:16-0.14:38-0.16:516:33New Moon3Tue
4Wed10:531.411:111.35:02-0.25:30-0.26:526:31New Moon4Wed
5Thu11:411.45:49-0.26:22-0.26:536:29Waxing Crescent5Thu
6Fri12:011.312:311.46:34-0.27:12-0.16:546:28Waxing Crescent6Fri
7Sat12:551.21:251.47:21-0.18:040.06:556:26Waxing Crescent7Sat
8Sun1:531.12:241.38:100.19:010.16:566:25Waxing Crescent8Sun
9Mon2:561.03:251.29:060.210:060.26:576:23First Quarter9Mon
10Tue3:591.04:251.210:140.411:170.36:586:21First Quarter10Tue
11Wed5:001.05:251.111:290.46:596:20First Quarter11Wed
12Thu6:021.06:261.112:230.312:370.47:006:18Waxing Gibbous12Thu
13Fri7:041.07:251.11:200.31:350.47:016:17Waxing Gibbous13Fri
14Sat8:001.08:181.12:070.22:240.37:026:15Waxing Gibbous14Sat
15Sun8:471.19:021.12:490.23:090.37:036:14Waxing Gibbous15Sun
16Mon9:271.19:421.13:270.13:520.27:046:12Full Moon16Mon
17Tue10:031.210:191.14:040.14:330.27:056:11Full Moon17Tue
18Wed10:371.210:561.14:400.15:140.27:066:09Full Moon18Wed
19Thu11:101.211:311.15:160.15:530.27:086:08Full Moon19Thu
20Fri11:411.25:500.26:300.27:096:06Waning Gibbous20Fri
21Sat12:071.012:101.16:230.27:070.27:106:05Waning Gibbous21Sat
22Sun12:440.912:411.16:540.37:430.37:116:03Waning Gibbous22Sun
23Mon1:260.91:181.17:250.48:220.47:126:02Waning Gibbous23Mon
24Tue2:150.92:061.18:000.49:110.47:136:00Third Quarter24Tue
25Wed3:120.83:061.08:460.510:180.57:145:59Third Quarter25Wed
26Thu4:100.94:091.09:560.511:280.47:155:58Third Quarter26Thu
27Fri5:070.95:111.111:220.57:175:56Third Quarter27Fri
28Sat6:061.06:161.112:290.312:350.47:185:55Waning Crescent28Sat
29Sun6:071.16:201.11:220.212:370.26:194:54Waning Crescent29Sun
30Mon7:031.27:191.21:110.01:330.16:204:52Waning Crescent30Mon
31Tue7:551.38:121.21:58-0.12:26-0.16:214:51New Moon31Tue
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 9:06 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 96% 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 Gibbous (96% 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