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 2h 29m 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 - Sep 1967

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri8:100.98:221.22:290.32:200.36:197:26Waning Crescent1Fri
2Sat9:011.09:131.33:170.23:130.26:207:25Waning Crescent2Sat
3Sun9:481.110:001.34:030.04:050.16:217:23New Moon3Sun
4Mon10:331.210:451.34:49-0.14:570.06:227:21New Moon4Mon
5Tue11:181.311:321.35:34-0.25:48-0.16:237:20New Moon5Tue
6Wed12:061.36:18-0.26:38-0.16:247:18Waxing Crescent6Wed
7Thu12:211.312:561.37:01-0.27:28-0.16:257:16Waxing Crescent7Thu
8Fri1:131.21:501.37:44-0.18:200.06:267:15Waxing Crescent8Fri
9Sat2:101.12:471.38:320.09:180.26:277:13First Quarter9Sat
10Sun3:101.13:451.29:270.210:260.36:287:11First Quarter10Sun
11Mon4:111.04:441.210:330.311:380.36:297:10First Quarter11Mon
12Tue5:121.05:441.211:450.46:307:08First Quarter12Tue
13Wed6:170.96:481.112:450.312:520.46:317:06Waxing Gibbous13Wed
14Thu7:241.07:501.21:430.31:510.36:327:05Waxing Gibbous14Thu
15Fri8:231.08:441.22:340.22:430.36:337:03Waxing Gibbous15Fri
16Sat9:121.19:291.23:190.23:300.26:347:01Waxing Gibbous16Sat
17Sun9:541.110:091.24:010.14:150.26:357:00Full Moon17Sun
18Mon10:331.110:471.24:410.14:580.26:366:58Full Moon18Mon
19Tue11:091.211:241.25:180.15:390.26:376:56Full Moon19Tue
20Wed11:441.25:530.16:180.26:386:55Full Moon20Wed
21Thu12:001.112:181.16:250.26:550.36:386:53Waning Gibbous21Thu
22Fri12:371.012:511.16:560.27:300.36:396:51Waning Gibbous22Fri
23Sat1:151.01:251.17:260.38:060.46:406:49Waning Gibbous23Sat
24Sun1:580.92:031.17:560.48:470.56:416:48Waning Gibbous24Sun
25Mon2:460.92:491.08:300.59:420.56:426:46Third Quarter25Mon
26Tue3:390.93:421.09:160.510:550.66:436:44Third Quarter26Tue
27Wed4:350.84:391.010:280.66:446:43Third Quarter27Wed
28Thu5:340.95:421.112:060.511:51 AM0.56:456:41Third Quarter28Thu
29Fri6:370.96:491.11:060.412:590.46:466:39Waning Crescent29Fri
30Sat7:391.07:521.21:570.31:580.36:476:38Waning Crescent30Sat
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