Tides Today & Tomorrow in Bay Saint Louis, MS

TIDE TIMES for Wednesday, July 8, 2026
The tide is currently falling in Bay Saint Louis, MS.
Next low tide : in 12h 16m at 6:55 pm (0.4 ft)
Next high tide (tomorrow) : 6:53 am (1.9 ft)
Sunset today : 8:02 pm
Sunrise tomorrow : 6:02 am
Moon phase : Third Quarter (40% illuminated)
Tide Station Location : Station #8747437
Common Questions About Tides

Bay Saint Louis, MS Tides - Sep 1994

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu8:162.17:480.56:347:20Waning Crescent1Thu
2Fri9:352.18:120.66:347:19Waning Crescent2Fri
3Sat10:502.18:270.76:357:18Waning Crescent3Sat
4Sun11:552.08:350.86:357:16New Moon4Sun
5Mon3:391.412:581.96:341.38:381.06:367:15New Moon5Mon
6Tue3:081.42:201.77:541.18:431.26:367:14New Moon6Tue
7Wed1:361.64:531.68:591.08:481.36:377:13Waxing Crescent7Wed
8Thu1:411.810:020.86:377:12Waxing Crescent8Thu
9Fri2:082.111:160.86:387:10Waxing Crescent9Fri
10Sat2:462.21:310.76:387:09Waxing Crescent10Sat
11Sun3:322.34:220.66:397:08First Quarter11Sun
12Mon4:252.45:330.56:407:07First Quarter12Mon
13Tue5:242.36:300.56:407:05First Quarter13Tue
14Wed6:282.27:170.56:417:04Waxing Gibbous14Wed
15Thu7:382.17:480.76:417:03Waxing Gibbous15Thu
16Fri9:012.07:530.86:427:01Waxing Gibbous16Fri
17Sat2:471.510:49 AM1.84:551.47:451.06:427:00Waxing Gibbous17Sat
18Sun2:351.512:301.76:241.37:471.26:436:59Full Moon18Sun
19Mon2:101.52:031.67:311.27:521.36:436:58Full Moon19Mon
20Tue12:391.74:151.58:261.07:551.46:446:56Full Moon20Tue
21Wed12:471.99:140.96:456:55Full Moon21Wed
22Thu1:112.010:000.96:456:54Waning Gibbous22Thu
23Fri1:412.110:480.86:466:53Waning Gibbous23Fri
24Sat2:132.211:540.86:466:51Waning Gibbous24Sat
25Sun2:492.21:560.86:476:50Waning Gibbous25Sun
26Mon3:292.23:430.86:476:49Third Quarter26Mon
27Tue4:162.24:470.76:486:48Third Quarter27Tue
28Wed5:112.15:340.76:486:46Third Quarter28Wed
29Thu6:132.16:110.76:496:45Third Quarter29Thu
30Fri7:282.06:380.86:506:44Waning Crescent30Fri
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 12:54 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 40% 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 (40% 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