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

TIDE TIMES for Sunday, June 21, 2026
The tide is currently rising in Glen Cove, Hempstead Harbor, NY.
Next low tide (tomorrow) : 12:26 am (0.3 ft)
Next high tide : in 4h 20m at 5:54 pm (8.0 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 - Jan 2023

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:137.77:526.712:590.11:46-0.37:184:37Waxing Gibbous1Sun
2Mon8:117.78:496.71:590.32:42-0.47:194:38Waxing Gibbous2Mon
3Tue9:037.69:406.62:540.43:34-0.47:194:39Waxing Gibbous3Tue
4Wed9:497.610:266.63:440.44:21-0.47:194:39Waxing Gibbous4Wed
5Thu10:317.511:076.64:290.55:05-0.37:194:40Full Moon5Thu
6Fri11:067.411:436.55:100.65:44-0.37:194:41Full Moon6Fri
7Sat11:367.35:450.76:17-0.27:184:42Full Moon7Sat
8Sun12:136.612:027.36:140.76:45-0.17:184:43Full Moon8Sun
9Mon12:376.612:327.26:410.77:080.07:184:44Waning Gibbous9Mon
10Tue1:046.81:077.17:120.67:350.07:184:45Waning Gibbous10Tue
11Wed1:386.91:477.07:500.68:100.17:184:46Waning Gibbous11Wed
12Thu2:177.02:326.88:330.68:500.37:174:47Waning Gibbous12Thu
13Fri3:017.13:206.69:220.69:350.47:174:49Third Quarter13Fri
14Sat3:487.24:136.410:160.510:260.67:174:50Third Quarter14Sat
15Sun4:407.25:096.211:160.511:210.77:164:51Third Quarter15Sun
16Mon5:357.36:116.212:200.37:164:52Third Quarter16Mon
17Tue6:357.57:196.312:200.71:290.17:154:53Waning Crescent17Tue
18Wed7:387.88:276.51:240.62:33-0.37:154:54Waning Crescent18Wed
19Thu8:408.19:276.92:280.33:31-0.77:144:55Waning Crescent19Thu
20Fri9:388.410:217.43:30-0.14:23-1.17:144:56New Moon20Fri
21Sat10:338.711:137.84:27-0.55:13-1.47:134:58New Moon21Sat
22Sun11:268.85:23-0.86:01-1.67:134:59New Moon22Sun
23Mon12:048.212:198.76:17-1.06:48-1.67:125:00Waxing Crescent23Mon
24Tue12:548.41:108.57:10-1.17:36-1.57:115:01Waxing Crescent24Tue
25Wed1:448.52:038.28:04-1.08:25-1.27:105:02Waxing Crescent25Wed
26Thu2:358.42:587.79:01-0.89:18-0.87:105:04Waxing Crescent26Thu
27Fri3:298.23:577.210:03-0.510:16-0.37:095:05First Quarter27Fri
28Sat4:287.85:036.711:08-0.311:200.17:085:06First Quarter28Sat
29Sun5:317.56:136.412:13-0.17:075:07First Quarter29Sun
30Mon6:377.37:226.212:260.51:170.07:065:09Waxing Gibbous30Mon
31Tue7:427.18:246.21:300.72:170.07:055:10Waxing Gibbous31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8516614)

Common Questions About Glen Cove, Hempstead Harbor, NY Tides

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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 9:10 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 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