Tides Today & Tomorrow in Bay Shore, NY

TIDE TIMES for Thursday, July 30, 2026
The tide is currently rising in Bay Shore, NY.
Next low tide : 5:40 pm (0.3 ft)
Next high tide : in 3h 20m at 11:21 am (1.0 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 1969

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon2:071.12:341.28:190.19:030.36:197:25Waning Gibbous1Mon
2Tue2:581.03:231.19:010.39:590.46:207:24Third Quarter2Tue
3Wed3:510.94:121.19:510.411:040.56:217:22Third Quarter3Wed
4Thu4:430.95:031.010:500.56:227:20Third Quarter4Thu
5Fri5:370.95:571.012:080.511:55 AM0.56:237:19Third Quarter5Fri
6Sat6:370.96:561.01:060.512:550.56:247:17Waning Crescent6Sat
7Sun7:370.97:531.11:560.41:480.56:257:16Waning Crescent7Sun
8Mon8:291.08:421.12:400.32:360.46:267:14Waning Crescent8Mon
9Tue9:141.09:231.13:220.23:210.36:277:12Waning Crescent9Tue
10Wed9:531.110:001.24:010.24:050.26:287:11New Moon10Wed
11Thu10:291.110:341.24:400.14:480.26:297:09New Moon11Thu
12Fri11:031.211:081.25:160.15:300.26:307:07New Moon12Fri
13Sat11:361.211:431.15:510.16:110.16:317:06New Moon13Sat
14Sun12:111.26:250.16:510.26:327:04Waxing Crescent14Sun
15Mon12:211.112:501.26:580.17:320.26:337:02Waxing Crescent15Mon
16Tue1:041.01:361.27:320.28:180.36:347:00Waxing Crescent16Tue
17Wed1:571.02:321.28:120.29:150.36:356:59First Quarter17Wed
18Thu2:591.03:341.29:040.310:270.46:366:57First Quarter18Thu
19Fri4:050.94:391.210:200.411:440.46:376:55First Quarter19Fri
20Sat5:130.95:461.211:460.46:386:54First Quarter20Sat
21Sun6:231.06:551.212:520.312:590.36:396:52Waxing Gibbous21Sun
22Mon7:331.08:001.21:500.12:020.26:406:50Waxing Gibbous22Mon
23Tue8:331.18:561.32:420.02:590.16:416:49Waxing Gibbous23Tue
24Wed9:251.29:451.33:31-0.13:520.06:426:47Full Moon24Wed
25Thu10:121.310:311.34:18-0.14:430.06:436:45Full Moon25Thu
26Fri10:561.311:161.35:03-0.15:320.06:446:44Full Moon26Fri
27Sat11:391.35:45-0.16:180.06:456:42Waning Gibbous27Sat
28Sun12:001.212:221.36:260.07:020.16:466:40Waning Gibbous28Sun
29Mon12:461.11:051.27:040.17:450.26:476:39Waning Gibbous29Mon
30Tue1:341.01:511.27:410.28:290.36:486:37Waning Gibbous30Tue
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 2:30 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