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 4h 59m 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 - Oct 2035

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:371.41:431.56:201.16:261.46:496:42New Moon1Mon
2Tue12:071.57:491.06:506:41New Moon2Tue
3Wed12:111.79:050.96:516:39Waxing Crescent3Wed
4Thu12:311.910:170.86:516:38Waxing Crescent4Thu
5Fri12:592.011:270.76:526:37Waxing Crescent5Fri
6Sat1:312.012:370.76:526:36Waxing Crescent6Sat
7Sun2:082.11:430.76:536:35First Quarter7Sun
8Mon2:512.12:430.76:546:33First Quarter8Mon
9Tue3:422.03:360.76:546:32First Quarter9Tue
10Wed4:442.04:220.76:556:31First Quarter10Wed
11Thu6:021.95:000.86:556:30Waxing Gibbous11Thu
12Fri7:351.85:290.96:566:29Waxing Gibbous12Fri
13Sat9:071.75:471.06:576:28Waxing Gibbous13Sat
14Sun10:351.65:521.26:576:26Waxing Gibbous14Sun
15Mon12:011.412:091.55:211.25:351.36:586:25Full Moon15Mon
16Tue11:281.76:401.06:596:24Full Moon16Tue
17Wed11:431.97:510.96:596:23Full Moon17Wed
18Thu9:010.77:006:22Full Moon18Thu
19Fri12:102.110:130.57:016:21Waning Gibbous19Fri
20Sat12:452.211:290.47:016:20Waning Gibbous20Sat
21Sun1:282.312:440.37:026:19Waning Gibbous21Sun
22Mon2:162.31:550.37:036:18Third Quarter22Mon
23Tue3:102.22:590.47:046:17Third Quarter23Tue
24Wed4:122.13:540.57:046:16Third Quarter24Wed
25Thu5:301.94:380.77:056:15Waning Crescent25Thu
26Fri7:291.75:070.97:066:14Waning Crescent26Fri
27Sat1:501.411:441.43:571.35:101.17:066:13Waning Crescent27Sat
28Sun12:281.35:541.14:201.37:076:12Waning Crescent28Sun
29Mon10:511.76:590.97:086:11New Moon29Mon
30Tue11:031.97:520.77:096:11New Moon30Tue
31Wed11:232.08:400.67:096:10New Moon31Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8745799)

Common Questions About Cat Island, MS Tides

Show All
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