Tides Today & Tomorrow in Bay Saint Louis, MS

TIDE TIMES for Friday, August 7, 2026
The tide is currently rising in Bay Saint Louis, MS.
Next low tide : 6:59 pm (0.0 ft)
Next high tide : in 7h 06m at 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 - Feb 1955

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue5:401.45:24-0.86:485:33First Quarter1Tue
2Wed6:421.46:13-1.06:475:34Waxing Gibbous2Wed
3Thu7:511.46:59-1.06:475:35Waxing Gibbous3Thu
4Fri9:001.47:38-1.06:465:36Waxing Gibbous4Fri
5Sat10:011.38:07-0.96:455:36Full Moon5Sat
6Sun10:511.18:24-0.76:455:37Full Moon6Sun
7Mon11:350.98:32-0.56:445:38Full Moon7Mon
8Tue4:480.48:36-0.27:430.36:435:39Full Moon8Tue
9Wed12:160.74:140.58:350.08:560.26:425:40Waning Gibbous9Wed
10Thu12:560.51:580.78:240.110:100.16:425:41Waning Gibbous10Thu
11Fri1:370.22:190.94:290.211:550.06:415:41Waning Gibbous11Fri
12Sat2:501.06:405:42Waning Gibbous12Sat
13Sun3:271.23:17-0.26:395:43Third Quarter13Sun
14Mon4:111.23:59-0.36:385:44Third Quarter14Mon
15Tue5:011.34:46-0.46:375:45Third Quarter15Tue
16Wed5:591.35:32-0.66:375:46Third Quarter16Wed
17Thu7:031.36:13-0.66:365:46Waning Crescent17Thu
18Fri8:121.36:48-0.66:355:47Waning Crescent18Fri
19Sat9:171.37:17-0.66:345:48Waning Crescent19Sat
20Sun10:131.27:38-0.56:335:49Waning Crescent20Sun
21Mon11:041.17:51-0.46:325:49New Moon21Mon
22Tue3:300.57:54-0.26:160.46:315:50New Moon22Tue
23Wed2:560.67:530.07:350.36:305:51New Moon23Wed
24Thu12:470.71:290.87:530.28:420.16:295:52Waxing Crescent24Thu
25Fri4:230.51:281.07:480.49:510.06:285:52Waxing Crescent25Fri
26Sat1:521.311:36-0.16:275:53Waxing Crescent26Sat
27Sun2:291.56:265:54Waxing Crescent27Sun
28Mon3:151.63:01-0.36:255:55First Quarter28Mon
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 12:34 pm — 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