Tides Today & Tomorrow in Bay Saint Louis, MS

TIDE TIMES for Saturday, August 8, 2026
The tide is currently rising in Bay Saint Louis, MS.
Next low tide : 7:50 pm (-0.2 ft)
Next high tide : in 5h 27m at 7:11 am (2.4 ft)
Sunset today : 7:45 pm
Sunrise tomorrow : 6:20 am
Moon phase : Waning Crescent (22% illuminated)
Tide Station Location : Station #8747437
Common Questions About Tides

Bay Saint Louis, MS Tides - Apr 1953

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:171.89:380.15:466:16Waning Gibbous1Wed
2Thu12:461.910:390.15:456:16Waning Gibbous2Thu
3Fri1:212.05:436:17Waning Gibbous3Fri
4Sat2:022.112:480.05:426:17Waning Gibbous4Sat
5Sun2:502.12:28-0.15:416:18Third Quarter5Sun
6Mon3:432.13:28-0.25:406:19Third Quarter6Mon
7Tue4:422.04:15-0.25:396:19Third Quarter7Tue
8Wed5:481.84:55-0.25:386:20Third Quarter8Wed
9Thu7:141.55:250.05:366:20Waning Crescent9Thu
10Fri1:051.15:440.34:171.05:356:21Waning Crescent10Fri
11Sat12:381.15:480.65:530.75:346:22Waning Crescent11Sat
12Sun1:141.211:23 AM1.35:390.97:020.35:336:22New Moon12Sun
13Mon10:441.78:000.15:326:23New Moon13Mon
14Tue11:052.08:56-0.15:316:24New Moon14Tue
15Wed11:402.29:56-0.15:306:24Waxing Crescent15Wed
16Thu12:202.311:13-0.15:286:25Waxing Crescent16Thu
17Fri1:042.35:276:25Waxing Crescent17Fri
18Sat1:512.21:100.05:266:26Waxing Crescent18Sat
19Sun2:392.12:330.05:256:27First Quarter19Sun
20Mon3:291.93:230.15:246:27First Quarter20Mon
21Tue4:181.73:540.25:236:28First Quarter21Tue
22Wed5:101.54:120.35:226:29First Quarter22Wed
23Thu12:441.34:240.54:131.25:216:29Waxing Gibbous23Thu
24Fri12:011.34:290.75:370.95:206:30Waxing Gibbous24Fri
25Sat11:111.44:190.96:280.75:196:31Waxing Gibbous25Sat
26Sun11:201.58:090.46:187:31Waxing Gibbous26Sun
27Mon11:201.78:470.36:177:32Full Moon27Mon
28Tue11:401.99:240.16:167:32Full Moon28Tue
29Wed12:082.110:050.06:157:33Full Moon29Wed
30Thu12:422.210:540.06:147:34Full Moon30Thu
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 1:30 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 transitional phase. Tonight's moon is 22% 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 shifting between spring and neap.

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 (22% illuminated). This places Bay Saint Louis, MS in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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