Tides Today & Tomorrow in Horn Island, MS

TIDE TIMES for Saturday, July 18, 2026
The tide is currently falling in Horn Island, MS.
Next low tide : in 38m at 9:20 pm (0.4 ft)
Next high tide (tomorrow) : 5:18 am (0.8 ft)
Sunset today : 7:56 pm
Sunrise tomorrow : 6:05 am
Moon phase : Waxing Crescent (23% illuminated)
Tide Station Location : Station #8742221
Common Questions About Tides

Horn Island, MS Tides - May 2059

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu12:182.010:41-0.36:117:32Waning Gibbous1Thu
2Fri1:082.16:107:33Waning Gibbous2Fri
3Sat2:082.012:14-0.36:097:33Third Quarter3Sat
4Sun3:071.91:19-0.36:087:34Third Quarter4Sun
5Mon4:021.72:06-0.16:077:35Third Quarter5Mon
6Tue4:571.42:430.16:067:35Third Quarter6Tue
7Wed5:541.03:030.36:067:36Waning Crescent7Wed
8Thu11:001.03:080.64:140.66:057:37Waning Crescent8Thu
9Fri12:060.910:14 AM1.22:470.86:150.36:047:37Waning Crescent9Fri
10Sat9:191.57:12-0.16:037:38New Moon10Sat
11Sun9:511.87:51-0.36:037:39New Moon11Sun
12Mon10:242.08:25-0.46:027:39New Moon12Mon
13Tue10:592.19:00-0.46:017:40Waxing Crescent13Tue
14Wed11:352.19:38-0.36:017:40Waxing Crescent14Wed
15Thu12:142.110:31-0.26:007:41Waxing Crescent15Thu
16Fri1:012.05:597:42Waxing Crescent16Fri
17Sat1:561.812:03-0.15:597:42First Quarter17Sat
18Sun2:511.612:580.05:587:43First Quarter18Sun
19Mon3:411.51:280.25:587:44First Quarter19Mon
20Tue4:311.21:470.35:577:44First Quarter20Tue
21Wed11:270.95:231.02:040.51:460.85:577:45Waxing Gibbous21Wed
22Thu10:330.911:380.92:190.63:170.65:567:46Waxing Gibbous22Thu
23Fri10:011.12:230.84:510.45:567:46Waxing Gibbous23Fri
24Sat8:051.36:030.15:557:47Waxing Gibbous24Sat
25Sun8:541.56:53-0.15:557:47Full Moon25Sun
26Mon9:361.87:34-0.35:557:48Full Moon26Mon
27Tue10:122.08:13-0.55:547:49Full Moon27Tue
28Wed10:472.18:54-0.55:547:49Full Moon28Wed
29Thu11:242.29:40-0.55:547:50Waning Gibbous29Thu
30Fri12:052.210:40-0.45:537:50Waning Gibbous30Fri
31Sat12:512.111:56-0.35:537:51Waning Gibbous31Sat
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 1:19 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 23% 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 Waxing Crescent (23% 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