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 11h 47m 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 2035

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon7:250.69:060.16:525:07Third Quarter1Mon
2Tue7:010.76:000.06:535:07Third Quarter2Tue
3Wed7:130.85:36-0.26:535:08Waning Crescent3Wed
4Thu7:371.05:48-0.46:535:09Waning Crescent4Thu
5Fri8:071.16:12-0.56:535:10Waning Crescent5Fri
6Sat8:371.16:42-0.66:535:10Waning Crescent6Sat
7Sun9:131.27:12-0.76:535:11New Moon7Sun
8Mon9:491.27:42-0.76:535:12New Moon8Mon
9Tue10:251.28:18-0.76:535:13New Moon9Tue
10Wed10:551.18:48-0.76:535:14New Moon10Wed
11Thu11:311.09:18-0.66:535:15Waxing Crescent11Thu
12Fri9:42-0.66:535:15Waxing Crescent12Fri
13Sat12:010.910:00-0.56:535:16Waxing Crescent13Sat
14Sun12:310.710:12-0.36:535:17Waxing Crescent14Sun
15Mon12:490.57:490.310:06-0.16:535:18First Quarter15Mon
16Tue6:070.49:000.06:535:19First Quarter16Tue
17Wed6:010.64:30-0.16:535:20First Quarter17Wed
18Thu6:250.94:24-0.46:525:20First Quarter18Thu
19Fri7:011.15:00-0.76:525:21Waxing Gibbous19Fri
20Sat7:491.25:42-0.96:525:22Waxing Gibbous20Sat
21Sun8:431.36:30-1.16:515:23Waxing Gibbous21Sun
22Mon9:371.37:18-1.16:515:24Full Moon22Mon
23Tue10:251.28:06-1.06:515:25Full Moon23Tue
24Wed11:131.18:48-0.96:505:26Full Moon24Wed
25Thu11:550.99:30-0.76:505:27Waning Gibbous25Thu
26Fri9:54-0.56:505:27Waning Gibbous26Fri
27Sat12:310.69:54-0.36:495:28Waning Gibbous27Sat
28Sun12:490.45:490.29:12-0.16:495:29Waning Gibbous28Sun
29Mon4:430.37:420.06:485:30Third Quarter29Mon
30Tue4:490.55:00-0.16:485:31Third Quarter30Tue
31Wed5:130.64:24-0.36:475:32Third Quarter31Wed
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