Gulf Coast
Horn Island
Mississippi Sound · Mississippi · NOAA station 8742221 · Tide predictions
30.2383, -88.6667
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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
Chandeleur Island SE, LA (279) buoy · 46 mi S · Station 42354
Wind & wave reports →
Nearby tide stations
- Graveline Bayou Entrance · 8.5 mi N
- Pascagoula, Mississippi Sound · 10.6 mi NE
- Pascagoula NOAA Lab · 10.9 mi NE
- Pascagoula, South Side · 11.1 mi NE
- Hollingsworth Point, Davis Bayou · 12.1 mi NW
Plan ahead
2027 tide extremes for this station
Highest predicted high tide: 2.4 ft — Sun Jun 6 · 11:10 AM
Lowest predicted low tide: -0.7 ft — Sat Jul 3 · 8:26 PM
Biggest single-day swing: 3.0 ft on Sat Jun 5
Best daytime minus tides of 2027
| Date | Low tide | Height |
|---|---|---|
| Thu Jan 21 | 7:06 AM | -0.7 ft |
| Tue Dec 14 | 7:42 AM | -0.6 ft |
| Mon Dec 13 | 7:03 AM | -0.6 ft |
| Wed Dec 15 | 8:20 AM | -0.6 ft |
| Tue Nov 16 | 8:14 AM | -0.5 ft |
| Fri Jan 22 | 7:36 AM | -0.5 ft |
| Mon Nov 15 | 7:31 AM | -0.5 ft |
| Wed Nov 17 | 9:07 AM | -0.5 ft |
| Sun Nov 28 | 7:08 AM | -0.4 ft |
| Thu Jul 29 | 6:17 PM | -0.4 ft |
179 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
Horn 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.