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 - Sep 1956

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat8:442.38:100.36:347:20Waning Crescent1Sat
2Sun10:172.28:360.56:347:19Waning Crescent2Sun
3Mon11:472.18:490.76:357:17New Moon3Mon
4Tue4:021.31:131.96:291.38:511.06:357:16New Moon4Tue
5Wed3:451.43:231.77:561.18:491.26:367:15New Moon5Wed
6Thu1:051.55:251.69:040.98:421.46:367:14Waxing Crescent6Thu
7Fri1:151.810:060.86:377:12Waxing Crescent7Fri
8Sat1:472.111:130.86:377:11Waxing Crescent8Sat
9Sun2:262.212:460.86:387:10Waxing Crescent9Sun
10Mon3:102.33:500.86:397:09First Quarter10Mon
11Tue3:592.34:590.76:397:08First Quarter11Tue
12Wed4:532.25:470.76:407:06First Quarter12Wed
13Thu5:532.26:250.76:407:05First Quarter13Thu
14Fri6:582.16:560.76:417:04Waxing Gibbous14Fri
15Sat8:122.07:200.86:417:02Waxing Gibbous15Sat
16Sun9:391.97:400.96:427:01Waxing Gibbous16Sun
17Mon11:051.87:531.06:427:00Waxing Gibbous17Mon
18Tue2:191.512:151.86:251.37:561.26:436:59Full Moon18Tue
19Wed1:371.51:231.77:261.27:461.36:446:57Full Moon19Wed
20Thu12:541.73:091.58:161.07:311.46:446:56Full Moon20Thu
21Fri12:541.99:000.96:456:55Full Moon21Fri
22Sat1:122.09:450.86:456:54Waning Gibbous22Sat
23Sun1:402.210:370.86:466:52Waning Gibbous23Sun
24Mon2:142.311:530.76:466:51Waning Gibbous24Mon
25Tue2:552.42:390.76:476:50Waning Gibbous25Tue
26Wed3:442.44:130.56:476:49Third Quarter26Wed
27Thu4:402.45:130.56:486:47Third Quarter27Thu
28Fri5:442.36:030.56:496:46Third Quarter28Fri
29Sat6:552.26:420.66:496:45Waning Crescent29Sat
30Sun8:262.07:050.86:506:44Waning Crescent30Sun
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