Tides Today & Tomorrow in Bay Saint Louis, MS

TIDE TIMES for Wednesday, August 5, 2026
The tide is currently rising in Bay Saint Louis, MS.
Next low tide (tomorrow) : 6:06 pm (0.3 ft)
Next high tide (tomorrow) : in 7h 41m at 5:19 am (2.1 ft)
Sunset today : 7:48 pm
Sunrise tomorrow : 6:18 am
Moon phase : Third Quarter (54% illuminated)
Tide Station Location : Station #8747437
Common Questions About Tides

Bay Saint Louis, MS Tides - Feb 2091

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu9:161.37:23-0.86:475:34Waxing Gibbous1Thu
2Fri10:091.37:53-0.86:465:34Full Moon2Fri
3Sat10:581.38:21-0.86:465:35Full Moon3Sat
4Sun11:441.28:45-0.76:455:36Full Moon4Sun
5Mon9:05-0.56:445:37Full Moon5Mon
6Tue12:281.05:550.49:22-0.38:040.36:445:38Waning Gibbous6Tue
7Wed1:100.85:490.49:34-0.19:310.26:435:39Waning Gibbous7Wed
8Thu1:470.53:050.69:360.111:280.16:425:40Waning Gibbous8Thu
9Fri2:040.23:230.84:290.16:415:40Third Quarter9Fri
10Sat4:031.04:38-0.26:415:41Third Quarter10Sat
11Sun4:511.25:10-0.46:405:42Third Quarter11Sun
12Mon5:451.35:49-0.56:395:43Waning Crescent12Mon
13Tue6:451.36:26-0.66:385:44Waning Crescent13Tue
14Wed7:501.36:57-0.66:375:44Waning Crescent14Wed
15Thu8:551.27:19-0.66:365:45Waning Crescent15Thu
16Fri9:541.27:37-0.56:355:46New Moon16Fri
17Sat10:441.17:53-0.46:345:47New Moon17Sat
18Sun11:291.08:10-0.36:335:48New Moon18Sun
19Mon4:370.58:26-0.17:280.56:325:48New Moon19Mon
20Tue12:120.94:190.68:380.08:240.46:325:49Waxing Crescent20Tue
21Wed12:540.72:320.68:390.19:180.36:315:50Waxing Crescent21Wed
22Thu1:360.52:320.88:230.310:230.36:305:51Waxing Crescent22Thu
23Fri2:200.42:510.97:080.36:285:51Waxing Crescent23Fri
24Sat3:181.11:230.26:275:52First Quarter24Sat
25Sun3:531.23:420.06:265:53First Quarter25Sun
26Mon4:361.24:26-0.16:255:54First Quarter26Mon
27Tue5:281.35:07-0.36:245:54First Quarter27Tue
28Wed6:311.45:46-0.46:235:55Waxing Gibbous28Wed
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 11:42 am — 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 neap phase. Tonight's moon is 54% 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 minimum.

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 Third Quarter (54% illuminated). This places Bay Saint Louis, MS in a neap tide cycle, so tidal ranges are near their weekly minimum 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