Tides Today & Tomorrow in Bay Saint Louis, MS

TIDE TIMES for Wednesday, July 15, 2026
The tide is currently falling in Bay Saint Louis, MS.
Next low tide : in 1h 13m at 11:23 pm (-0.2 ft)
Next high tide (tomorrow) : 1:27 pm (2.2 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 6:05 am
Moon phase : New Moon (2% illuminated)
Tide Station Location : Station #8747437
Common Questions About Tides

Bay Saint Louis, MS Tides - Mar 1985

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri5:521.55:33-0.56:235:56First Quarter1Fri
2Sat7:061.66:18-0.66:215:56Waxing Gibbous2Sat
3Sun8:241.66:56-0.76:205:57Waxing Gibbous3Sun
4Mon9:351.67:28-0.76:195:58Waxing Gibbous4Mon
5Tue10:381.67:53-0.66:185:58Full Moon5Tue
6Wed11:361.48:11-0.46:175:59Full Moon6Wed
7Thu4:030.68:20-0.16:540.56:166:00Full Moon7Thu
8Fri12:401.12:340.78:220.38:180.36:156:01Waning Gibbous8Fri
9Sat3:580.81:091.08:130.69:340.16:136:01Waning Gibbous9Sat
10Sun1:271.411:09-0.16:126:02Waning Gibbous10Sun
11Mon2:011.76:116:02Waning Gibbous11Mon
12Tue2:441.82:04-0.26:106:03Third Quarter12Tue
13Wed3:361.93:43-0.46:096:04Third Quarter13Wed
14Thu4:351.84:50-0.56:076:04Third Quarter14Thu
15Fri5:411.75:44-0.56:066:05Waning Crescent15Fri
16Sat6:521.66:27-0.46:056:06Waning Crescent16Sat
17Sun8:101.56:54-0.36:046:06Waning Crescent17Sun
18Mon9:241.47:06-0.16:036:07Waning Crescent18Mon
19Tue3:050.97:120.05:160.86:016:08New Moon19Tue
20Wed2:360.97:180.26:390.76:006:08New Moon20Wed
21Thu1:371.07:210.47:400.65:596:09New Moon21Thu
22Fri12:190.912:471.27:140.68:300.45:586:10New Moon22Fri
23Sat1:500.812:491.46:410.79:160.35:576:10Waxing Crescent23Sat
24Sun1:041.510:040.25:556:11Waxing Crescent24Sun
25Mon1:251.711:110.15:546:11Waxing Crescent25Mon
26Tue1:531.85:536:12Waxing Crescent26Tue
27Wed2:281.81:310.15:526:13First Quarter27Wed
28Thu3:131.93:060.05:506:13First Quarter28Thu
29Fri4:081.94:08-0.15:496:14First Quarter29Fri
30Sat5:131.94:57-0.25:486:14First Quarter30Sat
31Sun6:271.85:37-0.35:476:15Waxing Gibbous31Sun
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 6:25 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 2% 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 New Moon (2% 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