Know the Tide

Know the tide.

Gulf Coast

Petit Bois Island

Mississippi Sound · Mississippi · NOAA station 8740405 · Tide predictions

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

30.2033, -88.4417

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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

Chandeleur Island SE, LA (279) buoy · 45 mi S · Station 42354
Wind & wave reports →

Nearby tide stations

Plan ahead

2027 tide extremes for this station

Highest predicted high tide: 2.1 ft — Sat Jul 3 · 9:08 AM

Lowest predicted low tide: -0.7 ft — Sat Jul 3 · 8:01 PM

Biggest single-day swing: 2.8 ft on Sat Jul 3

Best daytime minus tides of 2027
DateLow tideHeight
Tue Dec 147:26 AM-0.6 ft
Fri Jul 306:24 PM-0.6 ft
Wed Dec 158:18 AM-0.5 ft
Thu Jul 16:22 PM-0.5 ft
Thu Jun 36:59 PM-0.5 ft
Tue Nov 168:14 AM-0.5 ft
Fri Jan 227:13 AM-0.5 ft
Wed Nov 179:20 AM-0.5 ft
Thu Jul 295:35 PM-0.5 ft
Mon Nov 157:13 AM-0.5 ft

197 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

Petit Bois Island, Mississippi Sound 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.

The northern Gulf runs small, mostly diurnal tides — often just one high and one low a day — where wind and river flow routinely outvote the moon.

Diurnal range1.5 ft
Mean range1.4 ft
RegionGulf Coast
NOAA chart11373
Station since1980