Tides Today & Tomorrow in Horn Island, MS

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently rising in Horn Island, MS.
Next low tide : 11:52 am (0.4 ft)
Next high tide : in 1h 22m at 2:53 am (1.2 ft)
Sunset today : 7:46 pm
Sunrise tomorrow : 6:15 am
Moon phase : Third Quarter (65% illuminated)
Tide Station Location : Station #8742221
Common Questions About Tides

Horn Island, MS Tides - Sep 1974

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun11:161.37:340.56:317:17Full Moon1Sun
2Mon2:180.711:250.85:480.67:350.66:317:16Full Moon2Mon
3Tue2:141.07:050.57:440.76:327:15Full Moon3Tue
4Wed4:050.98:000.47:500.86:327:14Waning Gibbous4Wed
5Thu12:121.28:500.36:337:13Waning Gibbous5Thu
6Fri12:501.49:480.26:347:11Waning Gibbous6Fri
7Sat1:381.511:250.16:347:10Third Quarter7Sat
8Sun2:311.71:130.06:357:09Third Quarter8Sun
9Mon3:241.82:27-0.16:357:08Third Quarter9Mon
10Tue4:181.83:52-0.16:367:07Third Quarter10Tue
11Wed5:141.85:27-0.16:367:05Waning Crescent11Wed
12Thu6:141.76:500.06:377:04Waning Crescent12Thu
13Fri7:261.57:180.26:377:03Waning Crescent13Fri
14Sat10:401.47:080.46:387:02New Moon14Sat
15Sun1:120.711:240.84:100.66:330.76:397:00New Moon15Sun
16Mon1:431.06:010.56:170.96:396:59New Moon16Mon
17Tue11:121.47:180.26:406:58New Moon17Tue
18Wed11:451.68:130.16:406:56Waxing Crescent18Wed
19Thu9:010.06:416:55Waxing Crescent19Thu
20Fri12:261.79:540.06:416:54Waxing Crescent20Fri
21Sat1:161.811:570.16:426:53First Quarter21Sat
22Sun2:121.81:380.16:426:51First Quarter22Sun
23Mon3:071.74:400.16:436:50First Quarter23Mon
24Tue4:011.65:520.26:436:49First Quarter24Tue
25Wed4:541.56:480.26:446:48Waxing Gibbous25Wed
26Thu5:491.47:310.36:456:46Waxing Gibbous26Thu
27Fri9:451.28:010.46:456:45Waxing Gibbous27Fri
28Sat10:491.211:480.75:460.66:466:44Waxing Gibbous28Sat
29Sun11:401.111:230.93:540.65:360.76:466:43Full Moon29Sun
30Mon12:501.05:170.55:510.86:476:41Full Moon30Mon
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 7:22 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 transitional phase. Tonight's moon is 65% 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 shifting between spring and neap.

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 Third Quarter (65% illuminated). This places Horn Island, MS in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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