Tides Today & Tomorrow in Bay Saint Louis, MS

TIDE TIMES for Friday, August 14, 2026
The tide is currently rising in Bay Saint Louis, MS.
Next low tide : 10:07 pm (0.8 ft)
Next high tide : in 6h 22m at 1:29 pm (1.8 ft)
Sunset today : 7:40 pm
Sunrise tomorrow : 6:23 am
Moon phase : Waxing Crescent (5% illuminated)
Tide Station Location : Station #8747437
Common Questions About Tides

Bay Saint Louis, MS Tides - Sep 1942

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:561.93:340.96:337:20Third Quarter1Tue
2Wed4:402.05:160.86:347:19Third Quarter2Wed
3Thu5:292.06:010.76:347:18Third Quarter3Thu
4Fri6:242.06:420.66:357:17Third Quarter4Fri
5Sat7:292.07:190.66:357:16Waning Crescent5Sat
6Sun8:432.07:510.66:367:14Waning Crescent6Sun
7Mon10:002.08:170.76:377:13Waning Crescent7Mon
8Tue11:062.08:360.76:377:12Waning Crescent8Tue
9Wed11:592.08:480.96:387:11New Moon9Wed
10Thu4:091.412:471.96:301.48:521.06:387:10New Moon10Thu
11Fri3:411.41:361.87:461.38:561.16:397:08New Moon11Fri
12Sat2:151.52:381.68:451.19:041.26:397:07Waxing Crescent12Sat
13Sun2:081.75:471.59:401.09:141.36:407:06Waxing Crescent13Sun
14Mon2:281.910:421.06:407:04Waxing Crescent14Mon
15Tue2:582.012:100.96:417:03Waxing Crescent15Tue
16Wed3:382.23:370.86:427:02First Quarter16Wed
17Thu4:262.35:040.66:427:01First Quarter17Thu
18Fri5:222.36:040.56:436:59First Quarter18Fri
19Sat6:262.36:550.56:436:58Waxing Gibbous19Sat
20Sun7:382.27:360.66:446:57Waxing Gibbous20Sun
21Mon9:022.18:020.76:446:56Waxing Gibbous21Mon
22Tue10:392.08:120.96:456:54Waxing Gibbous22Tue
23Wed3:161.512:081.86:091.48:171.16:456:53Full Moon23Wed
24Thu3:131.51:351.77:231.28:231.26:466:52Full Moon24Thu
25Fri1:081.54:161.68:251.18:281.46:476:51Full Moon25Fri
26Sat12:551.86:051.59:191.08:231.56:476:49Waning Gibbous26Sat
27Sun1:201.910:090.96:486:48Waning Gibbous27Sun
28Mon1:522.111:030.96:486:47Waning Gibbous28Mon
29Tue2:272.112:140.96:496:46Waning Gibbous29Tue
30Wed3:042.12:050.96:496:44Third Quarter30Wed
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 5:48 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 spring phase. Tonight's moon is 5% 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 maximum.

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 (5% illuminated). This places Bay Saint Louis, MS in a spring tide cycle, so tidal ranges are near their weekly maximum 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