Tides Today & Tomorrow in Bay Saint Louis, MS

TIDE TIMES for Wednesday, August 5, 2026
The tide is currently falling in Bay Saint Louis, MS.
Next low tide : in 1h 35m at 5:17 pm (0.6 ft)
Next high tide (tomorrow) : 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 - Jul 2090

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat2:351.85:598:03Waxing Crescent1Sat
2Sun3:091.612:050.35:598:03Waxing Crescent2Sun
3Mon3:271.212:210.56:008:03First Quarter3Mon
4Tue9:451.212:230.78:030.76:008:03First Quarter4Tue
5Wed6:481.47:580.56:018:03First Quarter5Wed
6Thu7:171.68:120.36:018:03Waxing Gibbous6Thu
7Fri8:041.88:320.16:028:02Waxing Gibbous7Fri
8Sat8:591.98:530.06:028:02Waxing Gibbous8Sat
9Sun9:552.09:130.06:038:02Waxing Gibbous9Sun
10Mon10:492.09:340.06:038:02Full Moon10Mon
11Tue11:372.09:570.16:048:01Full Moon11Tue
12Wed12:212.010:200.16:048:01Full Moon12Wed
13Thu1:021.910:430.26:058:01Waning Gibbous13Thu
14Fri1:401.811:040.36:058:01Waning Gibbous14Fri
15Sat2:171.711:180.56:068:00Waning Gibbous15Sat
16Sun2:501.511:160.66:068:00Waning Gibbous16Sun
17Mon3:111.310:550.76:077:59Waning Gibbous17Mon
18Tue6:501.210:090.86:087:59Third Quarter18Tue
19Wed6:161.48:110.76:087:59Third Quarter19Wed
20Thu6:361.57:370.66:097:58Third Quarter20Thu
21Fri7:111.77:380.46:097:58Third Quarter21Fri
22Sat7:581.87:590.26:107:57Waning Crescent22Sat
23Sun8:551.98:270.16:107:56Waning Crescent23Sun
24Mon9:562.08:560.06:117:56Waning Crescent24Mon
25Tue10:522.19:250.06:127:55New Moon25Tue
26Wed11:432.29:530.06:127:55New Moon26Wed
27Thu12:302.210:180.16:137:54New Moon27Thu
28Fri1:152.110:380.36:147:53Waxing Crescent28Fri
29Sat1:571.910:530.56:147:53Waxing Crescent29Sat
30Sun2:361.611:020.76:157:52Waxing Crescent30Sun
31Mon7:211.23:051.310:461.111:000.96:157:51Waxing Crescent31Mon
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 11:18 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 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