Tides Today & Tomorrow in Bay Saint Louis, MS

TIDE TIMES for Friday, June 19, 2026
The tide is currently falling in Bay Saint Louis, MS.
Next low tide (tomorrow) : in 8h 11m at 1:21 am (0.3 ft)
Next high tide (tomorrow) : 3:24 pm (1.5 ft)
Sunset today : 8:01 pm
Sunrise tomorrow : 5:55 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8747437
Common Questions About Tides

Bay Saint Louis, MS Tides - Feb 2031

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat6:191.15:53-0.66:475:33Waxing Gibbous1Sat
2Sun7:191.26:21-0.66:475:34Waxing Gibbous2Sun
3Mon8:231.26:51-0.76:465:35Waxing Gibbous3Mon
4Tue9:231.27:20-0.76:455:36Waxing Gibbous4Tue
5Wed10:141.17:46-0.66:455:37Full Moon5Wed
6Thu10:591.18:06-0.56:445:38Full Moon6Thu
7Fri11:390.98:18-0.46:435:38Full Moon7Fri
8Sat4:330.48:22-0.36:520.46:435:39Full Moon8Sat
9Sun12:170.84:000.58:21-0.18:050.36:425:40Waning Gibbous9Sun
10Mon12:550.62:330.68:230.09:100.26:415:41Waning Gibbous10Mon
11Tue1:330.42:300.88:250.110:280.16:405:42Waning Gibbous11Tue
12Wed2:531.06:395:43Waning Gibbous12Wed
13Thu3:291.23:28-0.16:395:43Third Quarter13Thu
14Fri4:131.34:05-0.36:385:44Third Quarter14Fri
15Sat5:071.44:52-0.66:375:45Third Quarter15Sat
16Sun6:071.45:39-0.76:365:46Waning Crescent16Sun
17Mon7:161.46:23-0.86:355:47Waning Crescent17Mon
18Tue8:301.47:03-0.86:345:47Waning Crescent18Tue
19Wed9:401.37:34-0.76:335:48Waning Crescent19Wed
20Thu10:401.17:54-0.56:325:49New Moon20Thu
21Fri3:480.58:03-0.26:210.46:315:50New Moon21Fri
22Sat3:380.58:070.07:390.36:305:50New Moon22Sat
23Sun12:140.71:100.78:050.28:450.26:295:51Waxing Crescent23Sun
24Mon12:560.51:120.97:510.49:510.16:285:52Waxing Crescent24Mon
25Tue1:411.111:130.06:275:53Waxing Crescent25Tue
26Wed2:181.36:265:53Waxing Crescent26Wed
27Thu2:591.33:150.06:255:54First Quarter27Thu
28Fri3:451.43:51-0.26:245:55First Quarter28Fri
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 8:22 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 transitional phase. Tonight's moon is 27% 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 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 Waxing Crescent (27% illuminated). This places Bay Saint Louis, 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