Tides Today & Tomorrow in Bay Saint Louis, MS

TIDE TIMES for Thursday, August 6, 2026
The tide is currently rising in Bay Saint Louis, MS.
Next low tide (tomorrow) : 6:59 pm (0.0 ft)
Next high tide (tomorrow) : in 9h 04m at 6:09 am (2.2 ft)
Sunset today : 7:47 pm
Sunrise tomorrow : 6:19 am
Moon phase : Third Quarter (43% illuminated)
Tide Station Location : Station #8747437
Common Questions About Tides

Bay Saint Louis, MS Tides - Apr 1955

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri5:411.65:27-0.15:466:15Waxing Gibbous1Fri
2Sat6:521.35:500.15:456:16Waxing Gibbous2Sat
3Sun1:071.15:450.44:251.05:446:16Waxing Gibbous3Sun
4Mon12:491.15:360.65:510.75:436:17Waxing Gibbous4Mon
5Tue12:451.012:041.25:310.86:520.55:426:18Full Moon5Tue
6Wed2:320.911:05 AM1.45:190.97:410.35:406:18Full Moon6Wed
7Thu11:181.68:250.25:396:19Full Moon7Thu
8Fri11:431.89:080.25:386:20Full Moon8Fri
9Sat12:141.99:570.15:376:20Waning Gibbous9Sat
10Sun12:471.911:010.15:366:21Waning Gibbous10Sun
11Mon1:232.05:356:21Waning Gibbous11Mon
12Tue2:022.012:380.25:336:22Waning Gibbous12Tue
13Wed2:431.92:080.15:326:23Third Quarter13Wed
14Thu3:271.83:080.15:316:23Third Quarter14Thu
15Fri4:141.73:520.15:306:24Third Quarter15Fri
16Sat5:071.64:250.25:296:25Third Quarter16Sat
17Sun6:241.34:460.45:286:25Waning Crescent17Sun
18Mon12:161.24:530.64:481.05:276:26Waning Crescent18Mon
19Tue11:471.34:450.85:550.75:266:26Waning Crescent19Tue
20Wed12:431.110:54 AM1.44:331.06:470.45:256:27Waning Crescent20Wed
21Thu10:341.77:370.25:246:28New Moon21Thu
22Fri10:531.98:300.05:226:28New Moon22Fri
23Sat11:252.29:28-0.15:216:29New Moon23Sat
24Sun1:052.311:40-0.26:207:30Waxing Crescent24Sun
25Mon1:492.46:197:30Waxing Crescent25Mon
26Tue2:362.31:21-0.16:187:31Waxing Crescent26Tue
27Wed3:242.23:00-0.16:177:32First Quarter27Wed
28Thu4:122.04:040.06:177:32First Quarter28Thu
29Fri4:581.74:470.26:167:33First Quarter29Fri
30Sat5:401.44:580.46:157:33First Quarter30Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8747437)

Common Questions About Bay Saint Louis, MS Tides

Show All
What time does the tide turn (slack tide) in Bay Saint Louis, MS today?

Slack tide in Bay Saint Louis, MS is approximately 12:34 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 neap phase. Tonight's moon is 43% 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 (43% 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