Tides Today & Tomorrow in Bay Saint Louis, MS

TIDE TIMES for Saturday, August 1, 2026
The tide is currently falling in Bay Saint Louis, MS.
Next low tide : in 1h 51m at 10:21 pm (0.6 ft)
Next high tide (tomorrow) : 6:18 am (1.2 ft)
Sunset today : 7:51 pm
Sunrise tomorrow : 6:15 am
Moon phase : Waning Gibbous (91% illuminated)
Tide Station Location : Station #8747437
Common Questions About Tides

Bay Saint Louis, MS Tides - May 1964

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri2:372.112:430.26:137:35Waning Gibbous1Fri
2Sat3:152.12:140.26:127:35Waning Gibbous2Sat
3Sun3:542.03:260.26:117:36Third Quarter3Sun
4Mon4:371.94:180.26:107:37Third Quarter4Mon
5Tue5:231.74:560.26:107:37Third Quarter5Tue
6Wed6:201.55:220.36:097:38Third Quarter6Wed
7Thu1:391.35:370.55:401.26:087:39Waning Crescent7Thu
8Fri1:101.35:400.76:510.96:077:39Waning Crescent8Fri
9Sat12:591.112:281.45:390.97:410.66:067:40Waning Crescent9Sat
10Sun3:141.111:38 AM1.65:271.18:300.36:067:41New Moon10Sun
11Mon11:451.99:190.06:057:41New Moon11Mon
12Tue12:132.210:13-0.16:047:42New Moon12Tue
13Wed12:492.411:16-0.26:047:43Waxing Crescent13Wed
14Thu1:312.46:037:43Waxing Crescent14Thu
15Fri2:162.412:37-0.26:027:44Waxing Crescent15Fri
16Sat3:032.32:14-0.16:027:44Waxing Crescent16Sat
17Sun3:512.13:280.06:017:45First Quarter17Sun
18Mon4:361.84:160.16:017:46First Quarter18Mon
19Tue5:161.54:370.36:007:46First Quarter19Tue
20Wed1:061.34:350.66:007:47Waxing Gibbous20Wed
21Thu12:401.44:290.89:540.85:597:48Waxing Gibbous21Thu
22Fri1:421.012:041.54:080.97:500.65:597:48Waxing Gibbous22Fri
23Sat10:481.68:150.45:587:49Waxing Gibbous23Sat
24Sun10:591.88:470.25:587:49Full Moon24Sun
25Mon11:262.09:230.15:577:50Full Moon25Mon
26Tue11:582.110:010.05:577:51Full Moon26Tue
27Wed12:322.110:420.05:577:51Full Moon27Wed
28Thu1:072.211:290.05:567:52Waning Gibbous28Thu
29Fri1:432.25:567:52Waning Gibbous29Fri
30Sat2:192.112:240.05:567:53Waning Gibbous30Sat
31Sun2:542.11:230.15:557:53Waning 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 2:19 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 91% 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 Waning Gibbous (91% 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