Tides Today & Tomorrow in Bay Saint Louis, MS

TIDE TIMES for Thursday, July 16, 2026
The tide is currently falling in Bay Saint Louis, MS.
Next low tide : in 5h 12m at 11:35 pm (0.1 ft)
Next high tide (tomorrow) : 2:06 pm (1.9 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 6:06 am
Moon phase : Waxing Crescent (7% illuminated)
Tide Station Location : Station #8747437
Common Questions About Tides

Bay Saint Louis, MS Tides - Dec 1983

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu8:421.46:100.16:364:56Waning Crescent1Thu
2Fri9:121.76:56-0.26:364:56New Moon2Fri
3Sat9:511.87:39-0.46:374:56New Moon3Sat
4Sun10:311.98:21-0.56:384:56New Moon4Sun
5Mon11:131.89:03-0.56:394:56New Moon5Mon
6Tue11:551.89:48-0.56:394:56Waxing Crescent6Tue
7Wed10:37-0.46:404:56Waxing Crescent7Wed
8Thu12:361.711:30-0.46:414:56Waxing Crescent8Thu
9Fri1:171.612:23-0.36:424:57Waxing Crescent9Fri
10Sat1:561.41:07-0.26:424:57First Quarter10Sat
11Sun2:291.21:40-0.16:434:57First Quarter11Sun
12Mon1:360.910:550.81:540.16:444:57First Quarter12Mon
13Tue9:550.81:230.36:444:57First Quarter13Tue
14Wed8:360.98:020.36:454:58Waxing Gibbous14Wed
15Thu8:131.16:010.16:464:58Waxing Gibbous15Thu
16Fri8:311.36:25-0.26:464:58Waxing Gibbous16Fri
17Sat9:031.56:58-0.46:474:59Waxing Gibbous17Sat
18Sun9:431.67:36-0.66:474:59Full Moon18Sun
19Mon10:271.78:19-0.86:485:00Full Moon19Mon
20Tue11:131.89:06-0.96:495:00Full Moon20Tue
21Wed11:591.89:57-0.96:495:00Full Moon21Wed
22Thu10:51-0.96:505:01Waning Gibbous22Thu
23Fri12:441.711:45-0.86:505:01Waning Gibbous23Fri
24Sat1:291.512:29-0.66:515:02Waning Gibbous24Sat
25Sun2:121.212:54-0.36:515:03Third Quarter25Sun
26Mon2:480.89:420.612:570.06:515:03Third Quarter26Mon
27Tue9:100.712:350.26:525:04Third Quarter27Tue
28Wed6:400.96:43-0.16:525:04Waning Crescent28Wed
29Thu7:091.26:25-0.46:525:05Waning Crescent29Thu
30Fri7:511.36:41-0.66:535:06Waning Crescent30Fri
31Sat8:361.57:12-0.86:535:06Waning Crescent31Sat
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 6:50 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 spring phase. Tonight's moon is 7% 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 (7% 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