Tides Today & Tomorrow in Bay Saint Louis, MS

TIDE TIMES for Monday, August 10, 2026
The tide is currently rising in Bay Saint Louis, MS.
Next low tide : 9:18 pm (-0.2 ft)
Next high tide : in 45m at 9:45 am (2.5 ft)
Sunset today : 7:43 pm
Sunrise tomorrow : 6:21 am
Moon phase : Waning Crescent (6% illuminated)
Tide Station Location : Station #8747437
Common Questions About Tides

Bay Saint Louis, MS Tides - Aug 1948

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:062.28:14-0.16:157:51Waning Crescent1Sun
2Mon9:162.38:56-0.36:167:50Waning Crescent2Mon
3Tue10:272.59:36-0.36:167:49New Moon3Tue
4Wed11:292.510:14-0.36:177:49New Moon4Wed
5Thu12:232.510:45-0.16:187:48New Moon5Thu
6Fri1:122.311:050.26:187:47New Moon6Fri
7Sat1:592.111:100.56:197:46Waxing Crescent7Sat
8Sun2:431.711:010.96:197:45Waxing Crescent8Sun
9Mon6:371.23:221.310:501.010:261.16:207:44Waxing Crescent9Mon
10Tue3:541.61:170.96:217:43First Quarter10Tue
11Wed4:251.95:430.66:217:42First Quarter11Wed
12Thu5:072.16:250.36:227:42First Quarter12Thu
13Fri5:562.27:080.26:237:41Waxing Gibbous13Fri
14Sat6:532.27:490.26:237:40Waxing Gibbous14Sat
15Sun7:582.28:230.26:247:39Waxing Gibbous15Sun
16Mon9:112.28:510.26:247:38Waxing Gibbous16Mon
17Tue10:212.29:140.26:257:37Full Moon17Tue
18Wed11:192.29:330.36:257:36Full Moon18Wed
19Thu12:072.29:490.46:267:35Full Moon19Thu
20Fri12:492.110:010.66:277:33Full Moon20Fri
21Sat1:291.910:040.86:277:32Full Moon21Sat
22Sun5:411.32:101.78:411.39:550.96:287:31Waning Gibbous22Sun
23Mon4:021.42:541.59:431.19:361.16:287:30Waning Gibbous23Mon
24Tue3:321.63:541.210:411.08:561.26:297:29Waning Gibbous24Tue
25Wed3:411.811:580.96:307:28Waning Gibbous25Wed
26Thu4:042.04:120.86:307:27Third Quarter26Thu
27Fri4:392.15:220.66:317:26Third Quarter27Fri
28Sat5:272.36:180.46:317:25Third Quarter28Sat
29Sun6:282.47:080.26:327:23Waning Crescent29Sun
30Mon7:402.47:530.16:327:22Waning Crescent30Mon
31Tue9:022.58:330.06:337:21Waning Crescent31Tue
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 3:31 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 6% 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 (6% 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