Tides Today & Tomorrow in Cat Island, MS

TIDE TIMES for Friday, August 21, 2026
The tide is currently falling in Cat Island, MS.
Next low tide : in 3h 04m at 5:29 pm (0.0 ft)
Next high tide (tomorrow) : 6:39 am (1.9 ft)
Sunset today : 7:31 pm
Sunrise tomorrow : 6:27 am
Moon phase : First Quarter (65% illuminated)
Tide Station Location : Station #8745799
Common Questions About Tides

Cat Island, MS Tides - Jan 2036

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue11:471.19:51-0.56:525:07Waxing Crescent1Tue
2Wed10:19-0.56:525:07Waxing Crescent2Wed
3Thu12:161.010:41-0.46:535:08Waxing Crescent3Thu
4Fri12:400.810:53-0.26:535:09Waxing Crescent4Fri
5Sat12:480.610:120.410:49-0.16:535:10First Quarter5Sat
6Sun7:170.510:060.06:535:10First Quarter6Sun
7Mon6:480.66:080.06:535:11First Quarter7Mon
8Tue6:570.94:48-0.36:535:12Waxing Gibbous8Tue
9Wed7:251.15:12-0.66:535:13Waxing Gibbous9Wed
10Thu8:051.35:51-0.86:535:13Waxing Gibbous10Thu
11Fri8:521.46:37-1.06:535:14Waxing Gibbous11Fri
12Sat9:421.57:27-1.16:535:15Full Moon12Sat
13Sun10:331.48:19-1.16:535:16Full Moon13Sun
14Mon11:241.39:11-1.06:535:17Full Moon14Mon
15Tue9:59-0.96:535:18Waning Gibbous15Tue
16Wed12:111.110:40-0.66:535:19Waning Gibbous16Wed
17Thu12:530.811:02-0.46:535:19Waning Gibbous17Thu
18Fri1:150.58:360.210:40-0.16:525:20Third Quarter18Fri
19Sat5:590.48:280.06:525:21Third Quarter19Sat
20Sun5:490.64:51-0.26:525:22Third Quarter20Sun
21Mon6:120.84:49-0.46:525:23Third Quarter21Mon
22Tue6:470.95:16-0.66:515:24Waning Crescent22Tue
23Wed7:271.05:47-0.76:515:25Waning Crescent23Wed
24Thu8:081.06:19-0.86:505:25Waning Crescent24Thu
25Fri8:491.06:51-0.86:505:26Waning Crescent25Fri
26Sat9:281.07:24-0.86:505:27New Moon26Sat
27Sun10:061.07:55-0.86:495:28New Moon27Sun
28Mon10:421.08:25-0.76:495:29New Moon28Mon
29Tue11:150.98:50-0.66:485:30New Moon29Tue
30Wed11:480.89:11-0.56:485:31Waxing Crescent30Wed
31Thu9:23-0.46:475:32Waxing Crescent31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8745799)

Common Questions About Cat Island, MS Tides

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

Slack tide in Cat Island, MS is approximately 12:04 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 Cat Island, MS?

Cat 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 Cat 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 Cat Island, MS?

Tide predictions for Cat 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 Cat Island, MS?

Tide data for Cat Island, MS is sourced from NOAA Station #8745799. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8745799.

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

Tonight the moon over Cat Island, MS is First Quarter (65% illuminated). This places Cat 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