Tides Today & Tomorrow in Cat Island, MS

TIDE TIMES for Friday, August 21, 2026
The tide is currently rising in Cat Island, MS.
Next low tide (tomorrow) : 6:16 pm (0.0 ft)
Next high tide (tomorrow) : in 9h 19m at 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 - Apr 2036

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:121.512:04-0.16:447:15Waxing Crescent1Tue
2Wed3:001.61:25-0.26:437:16First Quarter2Wed
3Thu3:581.62:38-0.36:427:16First Quarter3Thu
4Fri5:081.63:44-0.36:407:17First Quarter4Fri
5Sat6:341.54:42-0.26:397:18First Quarter5Sat
6Sun8:181.45:34-0.16:387:18Waxing Gibbous6Sun
7Mon10:061.26:170.16:377:19Waxing Gibbous7Mon
8Tue11:551.06:470.46:367:19Waxing Gibbous8Tue
9Wed12:250.86:500.66:330.56:357:20Full Moon9Wed
10Thu2:060.911:48 AM1.05:510.87:550.36:337:21Full Moon10Thu
11Fri11:491.29:040.26:327:21Full Moon11Fri
12Sat12:101.410:080.16:317:22Waning Gibbous12Sat
13Sun12:381.611:080.06:307:23Waning Gibbous13Sun
14Mon1:101.66:297:23Waning Gibbous14Mon
15Tue1:451.612:080.06:287:24Waning Gibbous15Tue
16Wed2:231.61:070.06:277:24Third Quarter16Wed
17Thu3:061.62:040.06:267:25Third Quarter17Thu
18Fri3:541.52:580.16:257:26Third Quarter18Fri
19Sat4:521.43:460.26:237:26Third Quarter19Sat
20Sun6:141.24:260.36:227:27Waning Crescent20Sun
21Mon8:151.14:560.46:217:28Waning Crescent21Mon
22Tue1:100.95:110.54:280.96:207:28Waning Crescent22Tue
23Wed11:431.05:070.75:580.76:197:29Waning Crescent23Wed
24Thu12:270.911:12 AM1.14:300.87:000.56:187:30New Moon24Thu
25Fri11:091.37:560.36:177:30New Moon25Fri
26Sat11:221.58:520.16:167:31New Moon26Sat
27Sun11:471.79:500.06:167:31New Moon27Sun
28Mon12:191.810:53-0.16:157:32Waxing Crescent28Mon
29Tue12:581.911:58-0.26:147:33Waxing Crescent29Tue
30Wed1:412.06:137:33Waxing Crescent30Wed
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 12:27 pm — 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