Tides Today & Tomorrow in Glen Cove, Hempstead Harbor, NY

TIDE TIMES for Sunday, June 21, 2026
The tide is currently falling in Glen Cove, Hempstead Harbor, NY.
Next low tide (tomorrow) : in 4h 30m at 12:26 am (0.3 ft)
Next high tide (tomorrow) : 6:23 am (7.2 ft)
Sunset today : 8:29 pm
Sunrise tomorrow : 5:23 am
Moon phase : First Quarter (48% illuminated)
Tide Station Location : Station #8516614
Common Questions About Tides

Glen Cove, Hempstead Harbor, NY Tides - Feb 2033

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:058.86:05-1.36:29-1.77:045:12Waxing Crescent1Tue
2Wed12:348.812:548.76:54-1.57:16-1.77:035:13Waxing Crescent2Wed
3Thu1:238.91:458.57:46-1.48:05-1.57:025:14Waxing Crescent3Thu
4Fri2:158.82:408.18:43-1.29:00-1.17:015:15Waxing Crescent4Fri
5Sat3:118.63:427.69:48-0.910:04-0.66:595:17First Quarter5Sat
6Sun4:158.24:547.211:00-0.611:17-0.36:585:18First Quarter6Sun
7Mon5:287.96:146.912:13-0.46:575:19First Quarter7Mon
8Tue6:447.77:286.812:320.01:21-0.46:565:20Waxing Gibbous8Tue
9Wed7:537.68:316.91:410.02:23-0.56:555:22Waxing Gibbous9Wed
10Thu8:527.79:267.12:420.03:18-0.66:545:23Waxing Gibbous10Thu
11Fri9:447.710:147.23:36-0.14:08-0.66:525:24Waxing Gibbous11Fri
12Sat10:297.710:577.34:25-0.24:52-0.66:515:25Full Moon12Sat
13Sun11:097.611:347.35:09-0.25:33-0.66:505:27Full Moon13Sun
14Mon11:437.55:48-0.16:07-0.46:495:28Full Moon14Mon
15Tue12:057.312:097.46:20-0.16:34-0.36:475:29Full Moon15Tue
16Wed12:267.312:307.36:460.06:53-0.16:465:30Waning Gibbous16Wed
17Thu12:467.412:577.37:080.07:15-0.16:455:31Waning Gibbous17Thu
18Fri1:157.51:327.17:370.07:470.16:435:33Waning Gibbous18Fri
19Sat1:527.52:137.08:140.18:250.36:425:34Waning Gibbous19Sat
20Sun2:357.42:586.78:580.39:100.56:405:35Third Quarter20Sun
21Mon3:227.33:496.59:490.510:020.76:395:36Third Quarter21Mon
22Tue4:147.24:446.310:480.611:000.86:385:37Third Quarter22Tue
23Wed5:117.15:466.311:530.66:365:39Third Quarter23Wed
24Thu6:137.26:556.512:040.81:060.46:355:40Waning Crescent24Thu
25Fri7:217.48:056.91:150.62:130.06:335:41Waning Crescent25Fri
26Sat8:267.89:047.52:230.23:08-0.46:325:42Waning Crescent26Sat
27Sun9:238.29:548.13:22-0.43:56-0.96:305:43Waning Crescent27Sun
28Mon10:148.610:418.64:14-0.94:41-1.36:295:44New Moon28Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8516614)

Common Questions About Glen Cove, Hempstead Harbor, NY Tides

Show All
What time does the tide turn (slack tide) in Glen Cove, Hempstead Harbor, NY today?

Slack tide in Glen Cove, Hempstead Harbor, NY is approximately 3:24 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 Glen Cove, Hempstead Harbor, NY?

Glen Cove, Hempstead Harbor, NY is currently in a neap phase. Tonight's moon is 48% 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 Glen Cove, Hempstead Harbor, 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 Glen Cove, Hempstead Harbor, NY?

Tide predictions for Glen Cove, Hempstead Harbor, 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 Glen Cove, Hempstead Harbor, NY?

Tide data for Glen Cove, Hempstead Harbor, NY is sourced from NOAA Station #8516614. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8516614.

What is the moon phase in Glen Cove, Hempstead Harbor, NY tonight?

Tonight the moon over Glen Cove, Hempstead Harbor, NY is First Quarter (48% illuminated). This places Glen Cove, Hempstead Harbor, 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