Tides Today & Tomorrow in Bay Saint Louis, MS

TIDE TIMES for Saturday, August 1, 2026
The tide is currently rising in Bay Saint Louis, MS.
Next low tide : 10:21 pm (0.6 ft)
Next high tide : in 3m at 2:02 pm (1.8 ft)
Sunset today : 7:51 pm
Sunrise tomorrow : 6:15 am
Moon phase : Waning Gibbous (91% illuminated)
Tide Station Location : Station #8747437
Common Questions About Tides

Bay Saint Louis, MS Tides - May 2084

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon2:001.111:53 AM1.54:231.07:330.56:127:35Waning Crescent1Mon
2Tue10:401.78:130.36:117:36Waning Crescent2Tue
3Wed10:581.98:510.16:117:37New Moon3Wed
4Thu11:292.19:290.06:107:37New Moon4Thu
5Fri12:052.210:110.06:097:38New Moon5Fri
6Sat12:432.210:570.06:087:39New Moon6Sat
7Sun1:222.211:530.16:077:39Waxing Crescent7Sun
8Mon2:012.26:077:40Waxing Crescent8Mon
9Tue2:402.112:590.16:067:41Waxing Crescent9Tue
10Wed3:162.02:040.16:057:41Waxing Crescent10Wed
11Thu3:471.92:530.26:057:42First Quarter11Thu
12Fri4:051.63:260.36:047:43First Quarter12Fri
13Sat2:291.43:410.56:037:43First Quarter13Sat
14Sun12:121.33:290.76:037:44First Quarter14Sun
15Mon11:161.42:520.97:370.76:027:45Waxing Gibbous15Mon
16Tue10:011.57:430.46:017:45Waxing Gibbous16Tue
17Wed10:021.88:150.16:017:46Waxing Gibbous17Wed
18Thu10:322.08:56-0.16:007:47Full Moon18Thu
19Fri11:112.39:45-0.36:007:47Full Moon19Fri
20Sat11:562.410:40-0.45:597:48Full Moon20Sat
21Sun12:422.511:42-0.45:597:48Full Moon21Sun
22Mon1:292.55:587:49Waning Gibbous22Mon
23Tue2:162.412:51-0.35:587:50Waning Gibbous23Tue
24Wed3:002.21:56-0.25:587:50Waning Gibbous24Wed
25Thu3:411.92:420.15:577:51Third Quarter25Thu
26Fri4:121.52:580.45:577:51Third Quarter26Fri
27Sat11:291.311:450.92:450.79:220.95:577:52Third Quarter27Sat
28Sun10:581.41:540.98:470.65:567:53Waning Crescent28Sun
29Mon8:361.58:330.45:567:53Waning Crescent29Mon
30Tue8:521.88:180.25:567:54Waning Crescent30Tue
31Wed9:312.08:330.05:557:54Waning Crescent31Wed
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 6:11 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 91% 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 Gibbous (91% 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