Mid-Atlantic
Nummy Island
Grassy Sound Channel · New Jersey · NOAA station 8535661 · Tide predictions
39.0283, -74.8017
Loading live tide data…
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
Loading…
H = high tide · L = low tide · highs & lows in local time
On the water nearby
Bethany Beach, DE (263) buoy · 36 mi S · Station 44084
Wind & wave reports →
Nearby tide stations
- West Wildwood, Grassy Sound · 2.1 mi SW
- Old Turtle Thorofare, RR. bridge · 2.3 mi W
- Stone Harbor, Great Channel · 2.8 mi NE
- Wildwood Crest, ocean pier · 3.9 mi S
- Wildwood Crest, Sunset Lake · 3.9 mi SW
Plan ahead
2027 tide extremes for this station
Highest predicted high tide: 5.7 ft — Mon Aug 2 · 8:50 PM
Lowest predicted low tide: -1.1 ft — Sat Jan 23 · 2:58 PM
Biggest single-day swing: 6.3 ft on Sat Jan 23
Best daytime minus tides of 2027
| Date | Low tide | Height |
|---|---|---|
| Sat Jan 23 | 2:58 PM | -1.1 ft |
| Sun Jan 24 | 3:43 PM | -1.1 ft |
| Sun Feb 21 | 2:33 PM | -1.1 ft |
| Fri Jan 22 | 2:11 PM | -1.0 ft |
| Mon Feb 22 | 3:15 PM | -1.0 ft |
| Sat Feb 20 | 1:49 PM | -1.0 ft |
| Mon Jan 25 | 4:30 PM | -0.9 ft |
| Thu Jan 21 | 1:21 PM | -0.8 ft |
| Tue Feb 23 | 3:57 PM | -0.8 ft |
| Fri Feb 19 | 1:02 PM | -0.8 ft |
224 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
NOAA builds the predictions for Nummy Island, Grassy Sound Channel from the Atlantic City (Ocean) station: high tides about the same height, 32 min later; low tides about the same height, 45 min later.
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.