Tides Today & Tomorrow in Bay Saint Louis, MS

TIDE TIMES for Monday, August 3, 2026
The tide is currently rising in Bay Saint Louis, MS.
Next low tide (tomorrow) : 12:43 pm (0.8 ft)
Next high tide (tomorrow) : in 5h 51m at 4:23 am (1.6 ft)
Sunset today : 7:49 pm
Sunrise tomorrow : 6:17 am
Moon phase : Waning Gibbous (75% illuminated)
Tide Station Location : Station #8747437
Common Questions About Tides

Bay Saint Louis, MS Tides - Jan 1960

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:051.410:32-0.66:535:07Waxing Crescent1Fri
2Sat12:461.210:55-0.46:545:08Waxing Crescent2Sat
3Sun1:230.911:08-0.26:545:08Waxing Crescent3Sun
4Mon1:530.68:220.511:020.06:545:09First Quarter4Mon
5Tue7:580.67:460.16:545:10First Quarter5Tue
6Wed5:520.77:02-0.16:545:11First Quarter6Wed
7Thu6:240.96:53-0.26:545:11First Quarter7Thu
8Fri7:071.06:23-0.46:555:12Waxing Gibbous8Fri
9Sat7:541.16:25-0.56:555:13Waxing Gibbous9Sat
10Sun8:441.26:53-0.66:555:14Waxing Gibbous10Sun
11Mon9:321.27:26-0.76:555:15Waxing Gibbous11Mon
12Tue10:171.28:00-0.76:555:15Full Moon12Tue
13Wed10:581.28:32-0.76:545:16Full Moon13Wed
14Thu11:361.28:59-0.76:545:17Full Moon14Thu
15Fri9:20-0.66:545:18Full Moon15Fri
16Sat12:121.19:33-0.56:545:19Waning Gibbous16Sat
17Sun12:450.99:43-0.46:545:20Waning Gibbous17Sun
18Mon1:150.87:040.49:54-0.39:180.46:545:21Waning Gibbous18Mon
19Tue1:390.56:430.510:07-0.16:535:21Waning Gibbous19Tue
20Wed5:100.610:090.06:535:22Third Quarter20Wed
21Thu5:210.85:52-0.16:535:23Third Quarter21Thu
22Fri5:551.05:32-0.36:535:24Third Quarter22Fri
23Sat6:421.15:52-0.66:525:25Waning Crescent23Sat
24Sun7:371.26:29-0.86:525:26Waning Crescent24Sun
25Mon8:371.37:09-0.96:525:27Waning Crescent25Mon
26Tue9:361.47:49-1.06:515:28New Moon26Tue
27Wed10:291.38:24-0.96:515:28New Moon27Wed
28Thu11:161.28:54-0.86:505:29New Moon28Thu
29Fri11:581.09:16-0.66:505:30New Moon29Fri
30Sat9:31-0.46:495:31Waxing Crescent30Sat
31Sun12:370.86:150.49:39-0.29:060.36:495:32Waxing Crescent31Sun
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 8:33 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 transitional phase. Tonight's moon is 75% 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 Gibbous (75% 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