Know the Tide

Know the tide.

Mid-Atlantic

Chance

Maryland · NOAA station 8571351 · Tide predictions

· Eastern Time · Feet / MLLW (mean lower low water)

38.1717, -75.9450

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48-hour outlook

Drag across the curve to inspect any time. Weather icons show the forecast at each high tide.

The next seven days

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H = high tide · L = low tide · highs & lows in local time

On the water nearby

Potomac buoy · 23 mi SW · Station 44042
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Nearby tide stations

Plan ahead

2027 tide extremes for this station

Highest predicted high tide: 2.9 ft — Fri Oct 1 · 3:09 PM

Lowest predicted low tide: -1.1 ft — Sat Jan 23 · 8:08 AM

Biggest single-day swing: 3.4 ft on Sat Jan 23

Best daytime minus tides of 2027
DateLow tideHeight
Sat Jan 238:08 AM-1.1 ft
Sun Jan 249:00 AM-1.0 ft
Fri Jan 227:13 AM-1.0 ft
Sun Feb 217:57 AM-0.9 ft
Mon Jan 259:52 AM-0.9 ft
Mon Feb 228:46 AM-0.9 ft
Sat Feb 207:04 AM-0.8 ft
Tue Feb 239:34 AM-0.7 ft
Tue Jan 2610:46 AM-0.6 ft
Wed Dec 158:31 AM-0.5 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 Chance from the CHESAPEAKE BAY BRIDGE TUNNEL station: high tides about 0.78× the height, 329 min later; low tides about 1.17× the height, 357 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.

RegionMid-Atlantic
NOAA chart12231
Station since1972