Tides Today & Tomorrow in Bay Saint Louis, MS

TIDE TIMES for Thursday, July 9, 2026
The tide is currently falling in Bay Saint Louis, MS.
Next low tide : in 4h 11m at 7:11 pm (0.1 ft)
Next high tide (tomorrow) : 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 - Jun 1992

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:042.410:42-0.35:557:54New Moon1Mon
2Tue12:492.411:29-0.35:557:55New Moon2Tue
3Wed1:332.45:557:55Waxing Crescent3Wed
4Thu2:162.312:16-0.25:557:56Waxing Crescent4Thu
5Fri2:562.012:58-0.15:557:56Waxing Crescent5Fri
6Sat3:321.71:260.25:547:57First Quarter6Sat
7Sun3:511.31:350.55:547:57First Quarter7Sun
8Mon10:291.31:210.78:220.75:547:58First Quarter8Mon
9Tue7:391.48:080.45:547:58Waxing Gibbous9Tue
10Wed7:491.78:140.25:547:58Waxing Gibbous10Wed
11Thu8:311.98:310.05:547:59Waxing Gibbous11Thu
12Fri9:222.08:56-0.15:547:59Waxing Gibbous12Fri
13Sat10:142.19:25-0.15:548:00Full Moon13Sat
14Sun11:052.29:55-0.15:548:00Full Moon14Sun
15Mon11:522.210:27-0.15:548:00Full Moon15Mon
16Tue12:352.210:58-0.15:558:01Full Moon16Tue
17Wed1:162.111:270.05:558:01Waning Gibbous17Wed
18Thu1:532.011:530.15:558:01Waning Gibbous18Thu
19Fri2:281.85:558:01Waning Gibbous19Fri
20Sat2:571.612:090.35:558:02Waning Gibbous20Sat
21Sun3:071.312:030.511:290.65:558:02Third Quarter21Sun
22Mon9:071.210:330.75:568:02Third Quarter22Mon
23Tue7:121.38:240.65:568:02Third Quarter23Tue
24Wed7:071.57:380.45:568:02Third Quarter24Wed
25Thu7:341.77:410.25:578:02Waning Crescent25Thu
26Fri8:171.98:080.05:578:03Waning Crescent26Fri
27Sat9:102.08:42-0.25:578:03Waning Crescent27Sat
28Sun10:082.29:20-0.35:588:03Waning Crescent28Sun
29Mon11:042.39:58-0.45:588:03New Moon29Mon
30Tue11:552.410:35-0.45:588:03New Moon30Tue
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 1:24 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 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