Tides Today & Tomorrow in Bay Saint Louis, MS

TIDE TIMES for Thursday, July 30, 2026
The tide is currently falling in Bay Saint Louis, MS.
Next low tide : in 2h 56m at 10:27 pm (0.2 ft)
Next high tide (tomorrow) : 1:26 pm (2.0 ft)
Sunset today : 7:52 pm
Sunrise tomorrow : 6:14 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #8747437
Common Questions About Tides

Bay Saint Louis, MS Tides - Mar 1968

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:260.81:430.88:080.29:000.36:225:56Waxing Crescent1Fri
2Sat1:190.61:381.07:370.410:020.16:215:57Waxing Crescent2Sat
3Sun1:541.211:180.06:205:57Waxing Crescent3Sun
4Mon2:181.46:195:58Waxing Crescent4Mon
5Tue2:481.51:25-0.16:185:59First Quarter5Tue
6Wed3:281.63:07-0.26:175:59First Quarter6Wed
7Thu4:191.64:16-0.36:166:00First Quarter7Thu
8Fri5:221.65:12-0.46:156:01First Quarter8Fri
9Sat6:331.65:59-0.56:136:01Waxing Gibbous9Sat
10Sun7:511.66:36-0.56:126:02Waxing Gibbous10Sun
11Mon9:071.67:05-0.56:116:03Waxing Gibbous11Mon
12Tue10:131.57:25-0.46:106:03Waxing Gibbous12Tue
13Wed11:161.37:36-0.26:096:04Full Moon13Wed
14Thu2:530.87:390.16:400.66:076:05Full Moon14Thu
15Fri12:261.11:130.97:380.47:550.36:066:05Full Moon15Fri
16Sat3:260.912:411.27:300.79:020.16:056:06Waning Gibbous16Sat
17Sun12:561.610:16-0.16:046:06Waning Gibbous17Sun
18Mon1:271.86:036:07Waning Gibbous18Mon
19Tue2:082.012:15-0.26:016:08Third Quarter19Tue
20Wed2:582.12:46-0.36:006:08Third Quarter20Wed
21Thu3:562.04:06-0.55:596:09Third Quarter21Thu
22Fri5:011.95:08-0.55:586:10Third Quarter22Fri
23Sat6:111.85:59-0.45:566:10Waning Crescent23Sat
24Sun7:261.66:34-0.35:556:11Waning Crescent24Sun
25Mon8:481.46:51-0.15:546:11Waning Crescent25Mon
26Tue2:201.06:500.15:050.95:536:12Waning Crescent26Tue
27Wed1:511.06:460.46:310.75:526:13New Moon27Wed
28Thu12:441.16:420.67:320.55:506:13New Moon28Thu
29Fri12:510.912:071.46:270.78:220.35:496:14New Moon29Fri
30Sat12:151.69:070.25:486:15New Moon30Sat
31Sun12:351.79:530.15:476:15Waxing Crescent31Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8747437)

Common Questions About Bay Saint Louis, MS Tides

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What time does the tide turn (slack tide) in Bay Saint Louis, MS today?

Slack tide in Bay Saint Louis, MS is approximately 5:56 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 Bay Saint Louis, MS?

Bay Saint Louis, MS is currently in a spring phase. Tonight's moon is 99% 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 near their weekly maximum.

What datum are Bay Saint Louis, 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 Bay Saint Louis, MS?

Tide predictions for Bay Saint Louis, 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 Bay Saint Louis, MS?

Tide data for Bay Saint Louis, MS is sourced from NOAA Station #8747437. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8747437.

What is the moon phase in Bay Saint Louis, MS tonight?

Tonight the moon over Bay Saint Louis, MS is Full Moon (99% illuminated). This places Bay Saint Louis, MS in a spring tide cycle, so tidal ranges are near their weekly maximum 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