Tides Today & Tomorrow in Bay Saint Louis, MS

TIDE TIMES for Thursday, July 9, 2026
The tide is currently rising in Bay Saint Louis, MS.
Next low tide : 7:11 pm (0.1 ft)
Next high tide : in 1h 30m at 6:53 am (1.9 ft)
Sunset today : 8:02 pm
Sunrise tomorrow : 6:02 am
Moon phase : Waning Crescent (29% illuminated)
Tide Station Location : Station #8747437
Common Questions About Tides

Bay Saint Louis, MS Tides - Feb 1993

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon6:091.25:42-0.66:475:34First Quarter1Mon
2Tue7:111.36:20-0.86:475:34Waxing Gibbous2Tue
3Wed8:181.46:56-0.96:465:35Waxing Gibbous3Wed
4Thu9:231.47:29-0.96:455:36Waxing Gibbous4Thu
5Fri10:221.47:58-0.96:455:37Full Moon5Fri
6Sat11:151.28:22-0.76:445:38Full Moon6Sat
7Sun8:39-0.56:435:39Full Moon7Sun
8Mon12:051.04:430.48:48-0.27:500.26:425:40Waning Gibbous8Mon
9Tue12:550.74:050.58:490.09:130.16:425:40Waning Gibbous9Tue
10Wed5:180.41:540.88:360.210:50-0.16:415:41Waning Gibbous10Wed
11Thu2:231.06:405:42Waning Gibbous11Thu
12Fri3:061.23:32-0.36:395:43Third Quarter12Fri
13Sat3:551.44:23-0.56:385:44Third Quarter13Sat
14Sun4:501.45:14-0.66:385:44Third Quarter14Sun
15Mon5:501.45:59-0.76:375:45Waning Crescent15Mon
16Tue6:541.36:35-0.66:365:46Waning Crescent16Tue
17Wed8:021.26:59-0.66:355:47Waning Crescent17Wed
18Thu9:091.27:13-0.56:345:48Waning Crescent18Thu
19Fri10:071.17:24-0.46:335:48New Moon19Fri
20Sat10:571.07:36-0.26:325:49New Moon20Sat
21Sun3:200.67:48-0.16:580.46:315:50New Moon21Sun
22Mon2:320.67:540.17:560.36:305:51New Moon22Mon
23Tue12:300.71:320.87:490.28:470.26:295:51Waxing Crescent23Tue
24Wed1:200.51:350.97:300.39:380.16:285:52Waxing Crescent24Wed
25Thu1:531.110:460.16:275:53Waxing Crescent25Thu
26Fri2:201.26:265:54Waxing Crescent26Fri
27Sat2:541.32:150.06:255:54First Quarter27Sat
28Sun3:371.43:34-0.26:245:55First Quarter28Sun
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 1:02 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 transitional phase. Tonight's moon is 29% 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 Waning Crescent (29% 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