Tides Today & Tomorrow in Bay Saint Louis, MS

TIDE TIMES for Sunday, August 2, 2026
The tide is currently rising in Bay Saint Louis, MS.
Next low tide : 10:15 pm (0.8 ft)
Next high tide : in 4h 19m at 2:40 pm (1.5 ft)
Sunset today : 7:50 pm
Sunrise tomorrow : 6:16 am
Moon phase : Waning Gibbous (84% illuminated)
Tide Station Location : Station #8747437
Common Questions About Tides

Bay Saint Louis, MS Tides - May 1963

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:261.75:060.26:147:34First Quarter1Wed
2Thu6:201.55:220.46:137:35Waxing Gibbous2Thu
3Fri1:431.35:310.65:301.26:127:35Waxing Gibbous3Fri
4Sat1:231.35:390.76:471.06:117:36Waxing Gibbous4Sat
5Sun12:471.012:501.45:430.87:380.76:107:37Waxing Gibbous5Sun
6Mon2:361.011:53 AM1.55:261.08:210.56:097:37Full Moon6Mon
7Tue11:521.79:000.46:097:38Full Moon7Tue
8Wed12:101.99:380.26:087:39Full Moon8Wed
9Thu12:352.010:160.26:077:39Full Moon9Thu
10Fri1:042.110:580.16:067:40Full Moon10Fri
11Sat1:362.111:500.16:067:41Waning Gibbous11Sat
12Sun2:102.26:057:41Waning Gibbous12Sun
13Mon2:472.11:010.16:047:42Waning Gibbous13Mon
14Tue3:262.12:180.16:037:43Third Quarter14Tue
15Wed4:082.03:150.16:037:43Third Quarter15Wed
16Thu4:531.83:570.26:027:44Third Quarter16Thu
17Fri5:431.64:280.36:027:45Third Quarter17Fri
18Sat1:081.44:490.56:017:45Waning Crescent18Sat
19Sun12:491.45:030.76:460.96:007:46Waning Crescent19Sun
20Mon1:211.112:151.45:070.97:390.56:007:47Waning Crescent20Mon
21Tue11:061.78:290.25:597:47New Moon21Tue
22Wed11:192.09:180.05:597:48New Moon22Wed
23Thu11:512.210:09-0.25:587:48New Moon23Thu
24Fri12:302.311:04-0.25:587:49New Moon24Fri
25Sat1:122.45:587:50Waxing Crescent25Sat
26Sun1:562.312:07-0.15:577:50Waxing Crescent26Sun
27Mon2:402.21:170.05:577:51Waxing Crescent27Mon
28Tue3:222.02:190.15:577:51First Quarter28Tue
29Wed4:011.82:580.35:567:52First Quarter29Wed
30Thu4:311.53:210.45:567:53First Quarter30Thu
31Fri12:511.43:340.65:567:53First Quarter31Fri
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 6:27 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 84% 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 (84% 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