Ship John Shoal tide times
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Tide chart · today
The next 7 days
Ship John Shoal at a glance
- Tides
- Twice a day
- Typical range
- 6.2 fthigh to low
- Highest of 2027
- 7.2 ftMon, Aug 2
- Lowest of 2027
- -1.1 ftSun, Jan 24
- Record high
- 9.6 ftDec 21, 2012
- High water after the moon
- 9 h 54 min
The tide at Ship John Shoal
- Pattern
- Twice-daily
Two high tides and two low tides a day, about 12 h 25 min apart. The two highs are close: on average just 0.9 ft apart. Form number 0.20. - Typical range
- 6.2 ft from the higher high to the lower low on an average day (1.89 m) - a bigger range than 75% of the 235 places on this site.
- After the moon
- High water comes about 9 h 54 min after the moon is highest in the sky.
2027: the biggest and smallest tides
| Mon, Aug 2 | 10:48 pm | 7.2 ft | |
| Tue, Aug 31 | 10:30 pm | 7.1 ft | |
| Sun, Jul 4 | 11:03 pm | 7.1 ft |
| Sun, Jan 24 | 5:11 am | -1.1 ft | in the dark |
| Mon, Feb 22 | 4:54 am | -1.1 ft | in the dark |
| Mon, Mar 22 | 4:47 am | -0.8 ft | in the dark |
| Sat, Jan 23 | 5:05 pm | -1.1 ft | |
| Sun, Feb 21 | 4:40 pm | -1.0 ft | |
| Mon, Mar 22 | 5:11 pm | -0.7 ft |
224 low tides in 2027 drop below zero - below the average lower low water - and uncover more shore than usual.
Records
- Highest water recorded
- 9.6 ft (2.92 m) on Dec 21, 2012 - 3.4 ft above the average higher high.
- Lowest water recorded
- -2.9 ft (-0.90 m) on Jan 4, 2010.
- Highest tide the moon and sun can raise
- 7.4 ft (2.24 m) - the highest astronomical tide in NOAA’s 19-year cycle, which fell on Oct 27, 2011.
Tide times nearby
- Delaware City22 mi northwest
- Brandywine Shoal Light26 mi southeast
- Chesapeake City28 mi northwest
- Cape May32 mi southeast
- Marcus Hook35 mi north
See the moon move the ocean - the same tide, on a globe seen from the moon.
Heights are above mean lower low water (MLLW), the zero of US charts; times are local. The year’s tides are NOAA’s official predictions - wind and air pressure can move the real water a foot or more. Form number: (K1+O1)/(M2+S2) from NOAA’s harmonic constants - below 0.25 twice-daily, above 3 once-daily. New Jersey, 39.305°N 75.377°W. Predictions and records: NOAA CO-OPS, station 8537121. Not for navigation or safety. For a boat, a crossing of sand that floods, or a swim, use the official tables and local advice. No ads, no tracking.