Tides Today & Tomorrow in Bay Saint Louis, MS

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently falling in Bay Saint Louis, MS.
Next low tide : in 1h 04m at 8:04 pm (0.4 ft)
Next high tide (tomorrow) : 7:27 am (1.8 ft)
Sunset today : 8:02 pm
Sunrise tomorrow : 5:56 am
Moon phase : First Quarter (68% illuminated)
Tide Station Location : Station #8747437
Common Questions About Tides

Bay Saint Louis, MS Tides - Jan 2015

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu7:571.27:00-0.66:535:07Waxing Gibbous1Thu
2Fri8:481.37:20-0.76:545:08Waxing Gibbous2Fri
3Sat9:381.37:45-0.76:545:09Full Moon3Sat
4Sun10:251.38:12-0.76:545:10Full Moon4Sun
5Mon11:081.28:39-0.76:545:10Full Moon5Mon
6Tue11:481.19:07-0.66:545:11Full Moon6Tue
7Wed9:33-0.56:545:12Waning Gibbous7Wed
8Thu12:261.09:54-0.46:545:13Waning Gibbous8Thu
9Fri1:010.810:07-0.36:545:13Waning Gibbous9Fri
10Sat1:280.67:300.410:04-0.210:120.46:545:14Waning Gibbous10Sat
11Sun1:040.46:180.59:45-0.16:545:15Third Quarter11Sun
12Mon5:260.68:370.06:545:16Third Quarter12Mon
13Tue5:410.86:17-0.16:545:17Third Quarter13Tue
14Wed6:140.95:49-0.36:545:18Third Quarter14Wed
15Thu6:571.06:05-0.56:545:18Waning Crescent15Thu
16Fri7:471.26:34-0.76:545:19Waning Crescent16Fri
17Sat8:421.37:07-0.86:545:20Waning Crescent17Sat
18Sun9:371.37:40-0.96:535:21Waning Crescent18Sun
19Mon10:271.48:14-0.96:535:22New Moon19Mon
20Tue11:151.38:46-0.96:535:23New Moon20Tue
21Wed9:14-0.86:535:24New Moon21Wed
22Thu12:001.29:37-0.66:525:25Waxing Crescent22Thu
23Fri12:420.96:290.49:53-0.48:380.36:525:25Waxing Crescent23Fri
24Sat1:200.76:290.410:00-0.110:180.26:515:26Waxing Crescent24Sat
25Sun1:480.33:500.59:480.16:515:27First Quarter25Sun
26Mon4:030.85:17-0.16:515:28First Quarter26Mon
27Tue4:430.95:32-0.36:505:29First Quarter27Tue
28Wed5:321.15:59-0.56:505:30First Quarter28Wed
29Thu6:261.16:27-0.66:495:31Waxing Gibbous29Thu
30Fri7:251.26:52-0.76:495:32Waxing Gibbous30Fri
31Sat8:271.27:10-0.76:485:32Waxing Gibbous31Sat
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 1:45 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 68% 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 First Quarter (68% 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