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 (tomorrow) : 7:52 pm (-0.2 ft)
Next high tide (tomorrow) : in 10h 12m at 7:38 am (2.1 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 - Jan 1992

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed8:111.47:06-0.86:535:07Waning Crescent1Wed
2Thu9:061.47:35-0.86:545:08Waning Crescent2Thu
3Fri9:571.48:05-0.86:545:09New Moon3Fri
4Sat10:431.38:35-0.86:545:09New Moon4Sat
5Sun11:251.39:04-0.76:545:10New Moon5Sun
6Mon9:29-0.66:545:11New Moon6Mon
7Tue12:021.29:47-0.56:545:12Waxing Crescent7Tue
8Wed12:371.09:54-0.46:545:12Waxing Crescent8Wed
9Thu1:060.86:400.49:43-0.29:140.46:545:13Waxing Crescent9Thu
10Fri1:240.55:450.59:27-0.16:545:14Waxing Crescent10Fri
11Sat4:460.78:530.06:545:15First Quarter11Sat
12Sun4:530.85:51-0.16:545:16First Quarter12Sun
13Mon5:221.05:13-0.36:545:16First Quarter13Mon
14Tue6:041.25:30-0.66:545:17First Quarter14Tue
15Wed6:581.36:06-0.86:545:18Waxing Gibbous15Wed
16Thu7:591.56:48-1.06:545:19Waxing Gibbous16Thu
17Fri9:031.67:31-1.16:545:20Waxing Gibbous17Fri
18Sat10:021.68:11-1.26:545:21Full Moon18Sat
19Sun10:551.58:48-1.16:535:22Full Moon19Sun
20Mon11:441.39:18-0.96:535:22Full Moon20Mon
21Tue9:37-0.76:535:23Waning Gibbous21Tue
22Wed12:271.06:100.39:43-0.48:200.36:525:24Waning Gibbous22Wed
23Thu1:060.65:440.49:36-0.110:070.16:525:25Waning Gibbous23Thu
24Fri1:340.32:550.69:010.16:525:26Waning Gibbous24Fri
25Sat3:240.94:34-0.16:515:27Third Quarter25Sat
26Sun4:061.14:51-0.46:515:28Third Quarter26Sun
27Mon4:541.25:21-0.66:505:29Third Quarter27Mon
28Tue5:471.25:53-0.76:505:29Waning Crescent28Tue
29Wed6:451.26:25-0.86:495:30Waning Crescent29Wed
30Thu7:481.26:54-0.86:495:31Waning Crescent30Thu
31Fri8:521.27:19-0.86:485:32Waning Crescent31Fri
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 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