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 : 5:29 pm (0.0 ft)
Next high tide : in 5h 28m at 5:36 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 - Jun 2034

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu10:401.79:10-0.15:557:53Full Moon1Thu
2Fri11:091.89:44-0.15:547:54Full Moon2Fri
3Sat11:401.810:19-0.25:547:54Full Moon3Sat
4Sun12:121.810:54-0.25:547:55Waning Gibbous4Sun
5Mon12:451.711:29-0.15:547:55Waning Gibbous5Mon
6Tue1:181.75:547:56Waning Gibbous6Tue
7Wed1:491.512:030.05:547:56Waning Gibbous7Wed
8Thu2:101.312:340.15:547:57Third Quarter8Thu
9Fri1:211.112:560.25:547:57Third Quarter9Fri
10Sat10:091.012:590.411:570.65:547:57Third Quarter10Sat
11Sun9:081.16:180.45:547:58Waning Crescent11Sun
12Mon8:551.36:380.15:547:58Waning Crescent12Mon
13Tue9:071.67:18-0.25:547:59Waning Crescent13Tue
14Wed9:361.88:05-0.45:547:59Waning Crescent14Wed
15Thu10:141.98:54-0.55:547:59New Moon15Thu
16Fri10:572.09:44-0.55:548:00New Moon16Fri
17Sat11:402.010:32-0.55:548:00New Moon17Sat
18Sun12:221.911:16-0.35:548:00Waxing Crescent18Sun
19Mon1:001.711:52-0.25:558:00Waxing Crescent19Mon
20Tue1:301.55:558:01Waxing Crescent20Tue
21Wed1:411.212:160.15:558:01First Quarter21Wed
22Thu12:441.012:180.211:480.45:558:01First Quarter22Thu
23Fri9:541.010:170.55:558:01First Quarter23Fri
24Sat8:421.07:390.45:568:01First Quarter24Sat
25Sun8:251.27:000.25:568:01Waxing Gibbous25Sun
26Mon8:321.37:080.05:568:02Waxing Gibbous26Mon
27Tue8:511.57:31-0.15:578:02Waxing Gibbous27Tue
28Wed9:181.67:59-0.25:578:02Waxing Gibbous28Wed
29Thu9:491.68:29-0.25:578:02Waxing Gibbous29Thu
30Fri10:221.79:00-0.35:588:02Full Moon30Fri
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 11:32 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