Tides Today & Tomorrow in Bay Saint Louis, MS

TIDE TIMES for Wednesday, August 12, 2026
The tide is currently rising in Bay Saint Louis, MS.
Next low tide : 10:09 pm (0.2 ft)
Next high tide : in 1h 44m at 11:56 am (2.3 ft)
Sunset today : 7:41 pm
Sunrise tomorrow : 6:22 am
Moon phase : New Moon (0% illuminated)
Tide Station Location : Station #8747437
Common Questions About Tides

Bay Saint Louis, MS Tides - May 1944

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon5:491.54:550.46:137:35First Quarter1Mon
2Tue2:131.45:230.56:127:35Waxing Gibbous2Tue
3Wed1:381.35:440.66:381.16:117:36Waxing Gibbous3Wed
4Thu1:061.35:520.87:260.96:117:37Waxing Gibbous4Thu
5Fri1:011.012:191.45:370.98:060.76:107:37Waxing Gibbous5Fri
6Sat11:521.68:420.56:097:38Full Moon6Sat
7Sun12:001.89:170.36:087:38Full Moon7Sun
8Mon12:221.99:530.26:077:39Full Moon8Mon
9Tue12:502.110:330.16:077:40Full Moon9Tue
10Wed1:232.211:240.06:067:40Waning Gibbous10Wed
11Thu1:592.26:057:41Waning Gibbous11Thu
12Fri2:402.312:330.06:047:42Waning Gibbous12Fri
13Sat3:232.21:590.06:047:42Waning Gibbous13Sat
14Sun4:092.13:100.06:037:43Third Quarter14Sun
15Mon4:581.84:000.16:027:44Third Quarter15Mon
16Tue5:481.54:360.36:027:44Third Quarter16Tue
17Wed1:041.44:570.56:017:45Waning Crescent17Wed
18Thu12:511.45:050.86:560.86:017:46Waning Crescent18Thu
19Fri1:461.112:241.55:011.07:480.56:007:46Waning Crescent19Fri
20Sat11:011.78:330.26:007:47New Moon20Sat
21Sun11:161.99:160.15:597:48New Moon21Sun
22Mon11:492.19:590.05:597:48New Moon22Mon
23Tue12:262.210:420.05:587:49New Moon23Tue
24Wed1:052.211:290.05:587:49Waxing Crescent24Wed
25Thu1:452.25:577:50Waxing Crescent25Thu
26Fri2:252.112:220.15:577:51Waxing Crescent26Fri
27Sat3:042.01:180.25:577:51Waxing Crescent27Sat
28Sun3:401.82:120.25:567:52First Quarter28Sun
29Mon4:061.62:560.45:567:52First Quarter29Mon
30Tue1:491.43:280.55:567:53First Quarter30Tue
31Wed12:501.33:450.65:557:53First Quarter31Wed
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 5:02 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 spring phase. Tonight's moon is 0% 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 New Moon (0% 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