Mid-Atlantic
Glen Cove
Hempstead Harbor · New York · NOAA station 8516614 · Tide predictions
40.8633, -73.6550
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48-hour outlook
Drag across the curve to inspect any time. Weather icons show the forecast at each high tide.
Drawn from the high/low predictions — NOAA publishes high/low only for this station.
The next seven days
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H = high tide · L = low tide · highs & lows in local time
On the water nearby
Great South Bay buoy · 32 mi E · Station 44069
Wind & wave reports →
Nearby tide stations
- Harry Tappen Marina, Hempstead Harbor · 2.0 mi S
- Port Washington, Manhasset Bay · 3.3 mi SW
- Bayville Bridge · 6.1 mi NE
- Kings Point · 6.8 mi SW
- Rye Beach · 6.9 mi N
Plan ahead
2027 tide extremes for this station
Highest predicted high tide: 9.4 ft — Thu Sep 2 · 1:15 PM
Lowest predicted low tide: -1.7 ft — Sat Jan 23 · 6:15 PM
Biggest single-day swing: 10.5 ft on Thu Sep 30
Best daytime minus tides of 2027
| Date | Low tide | Height |
|---|---|---|
| Sat Jan 23 | 6:15 PM | -1.7 ft |
| Sun Jan 24 | 7:00 PM | -1.6 ft |
| Fri Jan 22 | 5:28 PM | -1.5 ft |
| Sun Feb 21 | 5:57 PM | -1.5 ft |
| Sat Feb 20 | 5:13 PM | -1.4 ft |
| Mon Feb 22 | 6:39 PM | -1.3 ft |
| Tue Feb 23 | 7:08 AM | -1.3 ft |
| Thu Jan 21 | 4:39 PM | -1.3 ft |
| Tue Mar 23 | 7:05 AM | -1.3 ft |
| Mon Jan 25 | 7:27 AM | -1.2 ft |
276 minus tides (below 0 ft) are predicted here in 2027. The table shows up to the 10 lowest that fall between 7 AM and 7 PM — the ones worth planning a clam dig or tidepool walk around.
About this station
Glen Cove, Hempstead Harbor is one of NOAA's reference tide stations — its predictions are computed directly from harmonic analysis of water levels observed here, and other nearby stations are calculated from it.
Barrier islands, big bays, and river tides: Chesapeake and Delaware bays carry the tide deep inland, and a nor'easter can hold water in, or blow it out, for days at a time.