Tides Today & Tomorrow in Bay Saint Louis, MS

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently falling in Bay Saint Louis, MS.
Next low tide : in 6h 29m at 8:04 pm (0.4 ft)
Next high tide (tomorrow) : 7:27 am (1.8 ft)
Sunset today : 8:02 pm
Sunrise tomorrow : 5:56 am
Moon phase : First Quarter (68% illuminated)
Tide Station Location : Station #8747437
Common Questions About Tides

Bay Saint Louis, MS Tides - Jun 2037

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon1:492.25:557:54Waning Gibbous1Mon
2Tue2:292.112:280.15:557:55Waning Gibbous2Tue
3Wed3:071.91:190.25:557:55Waning Gibbous3Wed
4Thu3:421.72:060.35:557:56Third Quarter4Thu
5Fri3:591.52:440.45:557:56Third Quarter5Fri
6Sat1:061.43:090.65:547:57Third Quarter6Sat
7Sun12:081.33:110.710:260.85:547:57Third Quarter7Sun
8Mon11:201.48:380.75:547:58Waning Crescent8Mon
9Tue10:141.58:060.55:547:58Waning Crescent9Tue
10Wed10:141.78:280.25:547:59Waning Crescent10Wed
11Thu10:391.98:580.15:547:59Waning Crescent11Thu
12Fri11:122.09:32-0.15:547:59New Moon12Fri
13Sat11:492.210:08-0.25:548:00New Moon13Sat
14Sun12:292.310:48-0.25:548:00New Moon14Sun
15Mon1:092.311:32-0.25:558:00Waxing Crescent15Mon
16Tue1:502.35:558:01Waxing Crescent16Tue
17Wed2:322.212:18-0.15:558:01Waxing Crescent17Wed
18Thu3:112.01:030.05:558:01Waxing Crescent18Thu
19Fri3:471.71:400.25:558:02First Quarter19Fri
20Sat4:031.32:030.45:558:02First Quarter20Sat
21Sun11:201.32:120.78:500.85:568:02First Quarter21Sun
22Mon11:011.48:290.55:568:02Waxing Gibbous22Mon
23Tue8:351.68:250.25:568:02Waxing Gibbous23Tue
24Wed9:101.88:400.05:568:02Waxing Gibbous24Wed
25Thu9:562.09:06-0.15:578:03Waxing Gibbous25Thu
26Fri10:432.19:37-0.15:578:03Full Moon26Fri
27Sat11:302.210:08-0.15:578:03Full Moon27Sat
28Sun12:142.210:41-0.15:588:03Full Moon28Sun
29Mon12:572.111:130.05:588:03Waning Gibbous29Mon
30Tue1:372.011:450.15:588:03Waning Gibbous30Tue
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 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 transitional phase. Tonight's moon is 68% 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 First Quarter (68% 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