Tides Today & Tomorrow in Bay Saint Louis, MS

TIDE TIMES for Thursday, August 6, 2026
The tide is currently falling in Bay Saint Louis, MS.
Next low tide : in 11h 57m at 6:06 pm (0.3 ft)
Next high tide (tomorrow) : 6:09 am (2.2 ft)
Sunset today : 7:47 pm
Sunrise tomorrow : 6:19 am
Moon phase : Third Quarter (43% illuminated)
Tide Station Location : Station #8747437
Common Questions About Tides

Bay Saint Louis, MS Tides - Dec 2091

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:281.611:57-0.16:364:56Waning Gibbous1Sat
2Sun2:031.412:370.06:374:56Third Quarter2Sun
3Mon2:371.210:571.01:110.16:384:56Third Quarter3Mon
4Tue10:230.91:380.26:384:56Third Quarter4Tue
5Wed10:081.01:590.46:394:56Waning Crescent5Wed
6Thu8:391.15:290.36:404:56Waning Crescent6Thu
7Fri8:371.36:060.06:414:56Waning Crescent7Fri
8Sat9:101.56:51-0.36:414:56Waning Crescent8Sat
9Sun9:511.77:39-0.56:424:56New Moon9Sun
10Mon10:341.78:27-0.66:434:57New Moon10Mon
11Tue11:191.79:16-0.76:434:57New Moon11Tue
12Wed10:04-0.66:444:57Waxing Crescent12Wed
13Thu12:021.710:51-0.56:454:57Waxing Crescent13Thu
14Fri12:451.511:33-0.36:454:58Waxing Crescent14Fri
15Sat1:261.312:05-0.26:464:58Waxing Crescent15Sat
16Sun2:041.012:270.06:474:58First Quarter16Sun
17Mon2:340.89:460.712:360.26:474:59First Quarter17Mon
18Tue9:240.78:400.26:484:59First Quarter18Tue
19Wed7:250.87:490.16:485:00First Quarter19Wed
20Thu7:381.06:170.06:495:00Waxing Gibbous20Thu
21Fri8:111.16:09-0.26:495:01Waxing Gibbous21Fri
22Sat8:491.26:42-0.46:505:01Waxing Gibbous22Sat
23Sun9:301.37:18-0.56:505:02Waxing Gibbous23Sun
24Mon10:101.47:55-0.66:515:02Full Moon24Mon
25Tue10:501.48:31-0.66:515:03Full Moon25Tue
26Wed11:281.49:05-0.66:515:03Full Moon26Wed
27Thu9:35-0.66:525:04Full Moon27Thu
28Fri12:041.310:00-0.66:525:05Waning Gibbous28Fri
29Sat12:401.210:23-0.56:525:05Waning Gibbous29Sat
30Sun1:141.110:45-0.46:535:06Waning Gibbous30Sun
31Mon1:460.911:08-0.36:535:07Third Quarter31Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8747437)

Common Questions About Bay Saint Louis, MS Tides

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

Slack tide in Bay Saint Louis, MS is approximately 12:07 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 neap phase. Tonight's moon is 43% 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 minimum.

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 Third Quarter (43% illuminated). This places Bay Saint Louis, MS in a neap tide cycle, so tidal ranges are near their weekly minimum 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