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

TIDE TIMES for Wednesday, June 17, 2026
The tide is currently rising in Glen Cove, Hempstead Harbor, NY.
Next low tide (tomorrow) : 8:49 am (-0.9 ft)
Next high tide (tomorrow) : in 2h 51m at 2:15 am (8.8 ft)
Sunset today : 8:28 pm
Sunrise tomorrow : 5:22 am
Moon phase : Waxing Crescent (9% illuminated)
Tide Station Location : Station #8516614
Common Questions About Tides

Glen Cove, Hempstead Harbor, NY Tides - Jun 2026

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:267.71:066.87:130.27:031.25:248:20Full Moon1Mon
2Tue12:547.71:316.87:400.37:311.25:248:20Waning Gibbous2Tue
3Wed1:277.62:036.98:070.48:071.25:248:21Waning Gibbous3Wed
4Thu2:077.62:427.08:400.58:481.25:238:22Waning Gibbous4Thu
5Fri2:507.43:257.19:190.59:361.25:238:22Waning Gibbous5Fri
6Sat3:377.34:137.210:030.610:301.25:238:23Third Quarter6Sat
7Sun4:297.15:047.310:530.711:291.05:238:24Third Quarter7Sun
8Mon5:257.05:577.611:450.85:228:24Third Quarter8Mon
9Tue6:236.96:527.812:310.812:400.85:228:25Third Quarter9Tue
10Wed7:256.97:498.11:340.51:360.75:228:25Waning Crescent10Wed
11Thu8:297.08:478.52:360.22:340.65:228:26Waning Crescent11Thu
12Fri9:307.39:438.83:35-0.23:320.45:228:26Waning Crescent12Fri
13Sat10:267.510:389.14:29-0.64:280.15:228:27New Moon13Sat
14Sun11:207.811:319.25:22-0.95:23-0.15:228:27New Moon14Sun
15Mon12:138.06:14-1.16:19-0.25:228:28New Moon15Mon
16Tue12:259.21:078.27:06-1.17:15-0.35:228:28New Moon16Tue
17Wed1:209.12:028.37:57-1.18:13-0.35:228:28Waxing Crescent17Wed
18Thu2:158.82:578.38:49-0.99:12-0.15:228:29Waxing Crescent18Thu
19Fri3:128.43:548.29:44-0.610:160.05:228:29Waxing Crescent19Fri
20Sat4:138.04:548.110:41-0.311:220.25:228:29First Quarter20Sat
21Sun5:177.55:548.011:420.15:238:29First Quarter21Sun
22Mon6:237.26:547.912:260.312:420.45:238:30First Quarter22Mon
23Tue7:286.97:527.81:280.31:410.75:238:30First Quarter23Tue
24Wed8:306.88:497.72:260.32:380.95:238:30Waxing Gibbous24Wed
25Thu9:276.79:407.73:210.33:321.05:248:30Waxing Gibbous25Thu
26Fri10:186.710:257.74:120.34:211.15:248:30Waxing Gibbous26Fri
27Sat11:036.711:067.64:590.25:051.15:258:30Waxing Gibbous27Sat
28Sun11:446.711:407.65:420.25:451.25:258:30Full Moon28Sun
29Mon12:206.86:210.36:201.25:258:30Full Moon29Mon
30Tue12:097.612:506.86:550.36:491.25:268:30Full Moon30Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8516614)

Common Questions About Glen Cove, Hempstead Harbor, NY Tides

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When is the lowest tide this week in Glen Cove, Hempstead Harbor, NY?

The lowest tide this week in Glen Cove, Hempstead Harbor, NY is -0.9 ft on Thursday, Jun 18 at 8:49 am.

When is the highest tide this week in Glen Cove, Hempstead Harbor, NY?

The highest tide this week in Glen Cove, Hempstead Harbor, NY is 8.8 ft on Thursday, Jun 18 at 2:15 am — worth noting for launching your boat and being alert for possible high tide flooding.

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 5:32 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 spring phase. Tonight's moon is 9% 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 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 time is high tide in Glen Cove, Hempstead Harbor, NY today?

High tides in Glen Cove, Hempstead Harbor, NY today: 1:20 am (9.1 ft), 2:02 pm (8.3 ft). The 1:20 am high of 9.1 ft is notably higher than the other — known as diurnal inequality, common on coasts influenced by lunar declination.

What time is low tide in Glen Cove, Hempstead Harbor, NY today?

Low tides in Glen Cove, Hempstead Harbor, NY today: 7:57 am (-1.1 ft), 8:13 pm (-0.3 ft). The 7:57 am low of -1.1 ft is a minus tide — water below the MLLW reference datum, which can expose tidepools, mudflats, and shellfish beds not normally accessible.

What is the tidal range in Glen Cove, Hempstead Harbor, NY today?

Today's tidal range in Glen Cove, Hempstead Harbor, NY is 10.2 ft — the difference between the day's highest and lowest water level. This month's average daily range is about 8.0 ft, so today's swing is above-average.

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

Tonight the moon over Glen Cove, Hempstead Harbor, NY is Waxing Crescent (9% illuminated). This places Glen Cove, Hempstead Harbor, NY in a spring tide cycle, so tidal ranges are near their weekly maximum this week.

What type of tides does Glen Cove, Hempstead Harbor, NY have — semi-diurnal, diurnal, or mixed?

Glen Cove, Hempstead Harbor, NY has semi-diurnal tides — two high tides and two low tides roughly every 24 hours and 50 minutes, with similar heights.

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