Tides Today & Tomorrow in Oyster Bay, NY

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently falling in Oyster Bay, NY.
Next low tide (tomorrow) : in 4h 47m at 12:35 am (1.0 ft)
Next high tide (tomorrow) : 6:28 am (6.5 ft)
Sunset today : 8:20 pm
Sunrise tomorrow : 5:40 am
Moon phase : First Quarter (52% illuminated)
Tide Station Location : Station #8516201
Common Questions About Tides

Oyster Bay, NY Tides - Dec 1985

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:296.61:327.27:321.18:100.46:594:27Waning Gibbous1Sun
2Mon2:126.52:187.18:181.18:570.57:004:26Waning Gibbous2Mon
3Tue2:596.53:087.09:091.19:470.57:014:26Third Quarter3Tue
4Wed3:506.64:036.910:061.110:400.57:024:26Third Quarter4Wed
5Thu4:446.85:016.911:060.911:340.47:034:26Third Quarter5Thu
6Fri5:407.26:026.912:080.67:044:26Third Quarter6Fri
7Sat6:367.67:037.012:290.21:080.27:054:26Waning Crescent7Sat
8Sun7:318.18:017.21:230.02:06-0.37:064:26Waning Crescent8Sun
9Mon8:248.58:567.42:17-0.23:02-0.77:064:26Waning Crescent9Mon
10Tue9:168.89:497.53:10-0.43:55-1.07:074:26New Moon10Tue
11Wed10:079.010:427.64:02-0.54:48-1.17:084:26New Moon11Wed
12Thu10:599.011:347.54:54-0.55:39-1.17:094:26New Moon12Thu
13Fri11:518.75:47-0.46:31-0.97:104:26Waxing Crescent13Fri
14Sat12:277.412:448.46:41-0.27:23-0.77:104:26Waxing Crescent14Sat
15Sun1:217.21:398.07:360.08:16-0.37:114:27Waxing Crescent15Sun
16Mon2:167.12:357.58:330.39:100.07:124:27Waxing Crescent16Mon
17Tue3:126.93:317.19:320.610:050.37:124:27First Quarter17Tue
18Wed4:096.84:296.710:330.810:590.57:134:28First Quarter18Wed
19Thu5:056.85:286.411:340.811:520.77:144:28First Quarter19Thu
20Fri6:016.86:276.212:330.87:144:28First Quarter20Fri
21Sat6:556.97:236.212:440.81:280.77:154:29Waxing Gibbous21Sat
22Sun7:457.08:156.21:340.82:190.57:154:29Waxing Gibbous22Sun
23Mon8:317.29:026.32:210.83:050.37:164:30Waxing Gibbous23Mon
24Tue9:137.39:456.43:060.83:480.17:164:31Waxing Gibbous24Tue
25Wed9:537.310:266.53:490.74:290.07:164:31Full Moon25Wed
26Thu10:337.411:066.64:300.65:09-0.17:174:32Full Moon26Thu
27Fri11:117.411:456.65:100.65:47-0.17:174:33Full Moon27Fri
28Sat11:507.45:500.56:26-0.17:174:33Full Moon28Sat
29Sun12:246.612:307.36:300.57:06-0.17:184:34Waning Gibbous29Sun
30Mon1:056.61:127.37:120.57:47-0.17:184:35Waning Gibbous30Mon
31Tue1:486.71:577.27:580.58:26-0.17:184:35Waning Gibbous31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8516201)

Common Questions About Oyster Bay, NY Tides

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What time does the tide turn (slack tide) in Oyster Bay, NY today?

Slack tide in Oyster Bay, NY is approximately 3:31 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 Oyster Bay, NY?

Oyster Bay, NY is currently in a neap phase. Tonight's moon is 52% 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 minimum.

What datum are Oyster Bay, 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 Oyster Bay, NY?

Tide predictions for Oyster Bay, 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 Oyster Bay, NY?

Tide data for Oyster Bay, NY is sourced from NOAA Station #8516201. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8516201.

What is the moon phase in Oyster Bay, NY tonight?

Tonight the moon over Oyster Bay, NY is First Quarter (52% illuminated). This places Oyster Bay, NY in a neap tide cycle, so tidal ranges are near their weekly minimum 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