Tides Today & Tomorrow in Bay Shore, NY

TIDE TIMES for Thursday, July 30, 2026
The tide is currently falling in Bay Shore, NY.
Next low tide : in 1h 57m at 5:40 pm (0.3 ft)
Next high tide : 11:27 pm (1.2 ft)
Sunset today : 8:10 pm
Sunrise tomorrow : 5:48 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #8515102
Common Questions About Tides

Bay Shore, NY Tides - Sep 1968

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun5:161.05:531.211:510.36:207:25First Quarter1Sun
2Mon6:261.07:011.212:570.31:010.36:217:23Waxing Gibbous2Mon
3Tue7:371.08:061.21:570.22:030.26:227:22Waxing Gibbous3Tue
4Wed8:391.19:021.32:510.13:000.16:237:20Waxing Gibbous4Wed
5Thu9:311.19:511.33:410.03:520.16:247:18Full Moon5Thu
6Fri10:181.210:351.34:270.04:430.16:257:17Full Moon6Fri
7Sat11:011.211:171.25:110.05:300.16:267:15Full Moon7Sat
8Sun11:421.211:591.25:520.06:130.16:277:13Full Moon8Sun
9Mon12:231.26:290.06:540.26:277:12Waning Gibbous9Mon
10Tue12:401.11:031.27:040.17:340.26:287:10Waning Gibbous10Tue
11Wed1:241.11:441.17:370.28:140.36:297:08Waning Gibbous11Wed
12Thu2:101.02:281.18:100.38:580.46:307:07Waning Gibbous12Thu
13Fri2:590.93:131.08:460.49:520.56:317:05Third Quarter13Fri
14Sat3:500.94:011.09:320.510:590.66:327:03Third Quarter14Sat
15Sun4:420.84:521.010:370.66:337:02Third Quarter15Sun
16Mon5:370.85:471.012:060.611:49 AM0.66:347:00Third Quarter16Mon
17Tue6:370.96:481.01:040.512:530.56:356:58Waning Crescent17Tue
18Wed7:360.97:461.11:540.41:480.46:366:57Waning Crescent18Wed
19Thu8:271.08:361.22:380.32:370.36:376:55Waning Crescent19Thu
20Fri9:111.19:201.23:200.23:240.26:386:53Waning Crescent20Fri
21Sat9:511.210:011.24:020.14:120.16:396:52New Moon21Sat
22Sun10:301.210:421.34:430.05:000.06:406:50New Moon22Sun
23Mon11:101.311:241.25:23-0.15:470.06:416:48New Moon23Mon
24Tue11:531.36:04-0.16:340.06:426:47Waxing Crescent24Tue
25Wed12:091.212:401.36:450.07:220.06:436:45Waxing Crescent25Wed
26Thu1:001.11:321.37:280.08:130.16:446:43Waxing Crescent26Thu
27Fri1:581.12:311.38:150.19:120.26:456:41First Quarter27Fri
28Sat3:021.03:341.29:120.310:220.36:466:40First Quarter28Sat
29Sun4:081.04:381.210:260.411:360.36:476:38First Quarter29Sun
30Mon5:131.05:421.211:450.46:486:36First Quarter30Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8515102)

Common Questions About Bay Shore, NY Tides

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

Slack tide in Bay Shore, NY is approximately 8:33 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 spring phase. Tonight's moon is 99% 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 Full Moon (99% 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