Tides Today & Tomorrow in Bay Saint Louis, MS

TIDE TIMES for Sunday, July 12, 2026
The tide is currently rising in Bay Saint Louis, MS.
Next low tide : 9:27 pm (-0.5 ft)
Next high tide : in 6h 20m at 9:47 am (2.4 ft)
Sunset today : 8:01 pm
Sunrise tomorrow : 6:04 am
Moon phase : Waning Crescent (4% illuminated)
Tide Station Location : Station #8747437
Common Questions About Tides

Bay Saint Louis, MS Tides - Jun 1988

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:312.511:25-0.45:557:54Full Moon1Wed
2Thu1:172.55:557:55Waning Gibbous2Thu
3Fri2:022.512:23-0.45:557:55Waning Gibbous3Fri
4Sat2:462.41:20-0.35:557:56Waning Gibbous4Sat
5Sun3:282.12:05-0.15:547:56Third Quarter5Sun
6Mon4:051.72:330.15:547:57Third Quarter6Mon
7Tue4:211.32:380.45:547:57Third Quarter7Tue
8Wed10:561.32:180.88:350.75:547:58Third Quarter8Wed
9Thu8:351.58:050.45:547:58Waning Crescent9Thu
10Fri8:281.88:080.05:547:58Waning Crescent10Fri
11Sat9:062.18:36-0.25:547:59Waning Crescent11Sat
12Sun9:532.29:12-0.35:547:59New Moon12Sun
13Mon10:442.39:50-0.35:548:00New Moon13Mon
14Tue11:342.310:29-0.25:548:00New Moon14Tue
15Wed12:222.311:08-0.25:548:00New Moon15Wed
16Thu1:062.211:46-0.15:558:01Waxing Crescent16Thu
17Fri1:472.25:558:01Waxing Crescent17Fri
18Sat2:252.012:190.05:558:01Waxing Crescent18Sat
19Sun2:571.812:460.15:558:01Waxing Crescent19Sun
20Mon3:181.61:020.35:558:02First Quarter20Mon
21Tue1:381.312:530.511:550.75:558:02First Quarter21Tue
22Wed9:301.29:270.75:568:02First Quarter22Wed
23Thu7:291.47:470.55:568:02First Quarter23Thu
24Fri7:361.67:300.35:568:02Waxing Gibbous24Fri
25Sat8:051.87:540.05:578:02Waxing Gibbous25Sat
26Sun8:502.08:29-0.25:578:03Waxing Gibbous26Sun
27Mon9:442.29:10-0.35:578:03Waxing Gibbous27Mon
28Tue10:412.39:52-0.45:578:03Full Moon28Tue
29Wed11:352.510:35-0.55:588:03Full Moon29Wed
30Thu12:252.511:17-0.55:588:03Full Moon30Thu
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 3:37 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 spring phase. Tonight's moon is 4% 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 Crescent (4% 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