Tides Today & Tomorrow in Horn Island, MS

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently rising in Horn Island, MS.
Next low tide (tomorrow) : 6:03 pm (0.2 ft)
Next high tide (tomorrow) : in 8h 46m at 4:23 am (1.6 ft)
Sunset today : 7:55 pm
Sunrise tomorrow : 6:06 am
Moon phase : First Quarter (53% illuminated)
Tide Station Location : Station #8742221
Common Questions About Tides

Horn Island, MS Tides - Apr 2060

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu2:201.110:49 AM1.26:350.97:320.16:427:13New Moon1Thu
2Fri11:101.58:29-0.16:417:14Waxing Crescent2Fri
3Sat11:431.89:23-0.26:407:15Waxing Crescent3Sat
4Sun12:252.010:36-0.36:387:15Waxing Crescent4Sun
5Mon1:162.16:377:16Waxing Crescent5Mon
6Tue2:152.112:38-0.26:367:17First Quarter6Tue
7Wed3:122.01:53-0.26:357:17First Quarter7Wed
8Thu4:081.83:16-0.16:347:18First Quarter8Thu
9Fri5:031.65:370.06:337:18First Quarter9Fri
10Sat5:581.46:450.16:317:19Waxing Gibbous10Sat
11Sun10:001.27:300.36:307:20Waxing Gibbous11Sun
12Mon12:380.77:550.52:410.76:297:20Waxing Gibbous12Mon
13Tue11:360.85:260.74:330.66:287:21Waxing Gibbous13Tue
14Wed12:081.010:37 AM1.05:240.85:550.46:277:22Full Moon14Wed
15Thu2:461.010:20 AM1.25:330.96:560.26:267:22Full Moon15Thu
16Fri10:391.47:410.06:257:23Full Moon16Fri
17Sat11:041.68:21-0.16:247:23Full Moon17Sat
18Sun11:311.79:02-0.26:237:24Waning Gibbous18Sun
19Mon12:041.89:51-0.26:227:25Waning Gibbous19Mon
20Tue12:461.911:08-0.26:207:25Waning Gibbous20Tue
21Wed1:401.96:197:26Waning Gibbous21Wed
22Thu2:391.912:41-0.26:187:27Third Quarter22Thu
23Fri3:361.81:44-0.26:177:27Third Quarter23Fri
24Sat4:321.72:38-0.16:167:28Third Quarter24Sat
25Sun5:311.43:280.06:157:29Waning Crescent25Sun
26Mon6:421.14:040.36:147:29Waning Crescent26Mon
27Tue11:320.911:551.04:160.64:120.66:147:30Waning Crescent27Tue
28Wed10:261.14:090.85:590.36:137:30Waning Crescent28Wed
29Thu9:371.47:11-0.16:127:31New Moon29Thu
30Fri10:061.88:00-0.46:117:32New Moon30Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8742221)

Common Questions About Horn Island, MS Tides

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What time does the tide turn (slack tide) in Horn Island, MS today?

Slack tide in Horn Island, MS is approximately 11:13 am — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Horn Island, MS?

Horn Island, MS is currently in a neap phase. Tonight's moon is 53% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are near their weekly minimum.

What datum are Horn Island, MS tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for Horn Island, MS?

Tide predictions for Horn Island, MS come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for Horn Island, MS?

Tide data for Horn Island, MS is sourced from NOAA Station #8742221. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8742221.

What is the moon phase in Horn Island, MS tonight?

Tonight the moon over Horn Island, MS is First Quarter (53% illuminated). This places Horn Island, MS in a neap tide cycle, so tidal ranges are near their weekly minimum this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA