Tides Today & Tomorrow in Bay Saint Louis, MS

TIDE TIMES for Sunday, August 2, 2026
The tide is currently falling in Bay Saint Louis, MS.
Next low tide : in 5h 15m at 10:15 pm (0.8 ft)
Next high tide (tomorrow) : 4:45 am (1.4 ft)
Sunset today : 7:50 pm
Sunrise tomorrow : 6:16 am
Moon phase : Waning Gibbous (84% illuminated)
Tide Station Location : Station #8747437
Common Questions About Tides

Bay Saint Louis, MS Tides - Sep 1962

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat4:521.42:031.78:501.39:441.16:337:20Waxing Crescent1Sat
2Sun2:551.52:511.59:371.29:381.26:347:19Waxing Crescent2Sun
3Mon3:021.63:571.410:241.19:191.36:347:18Waxing Crescent3Mon
4Tue3:221.811:221.16:357:17Waxing Crescent4Tue
5Wed3:491.93:321.06:367:15First Quarter5Wed
6Thu4:252.04:570.86:367:14First Quarter6Thu
7Fri5:092.15:500.76:377:13First Quarter7Fri
8Sat6:042.26:350.66:377:12First Quarter8Sat
9Sun7:082.27:160.56:387:11Waxing Gibbous9Sun
10Mon8:232.27:520.46:387:09Waxing Gibbous10Mon
11Tue9:452.38:230.46:397:08Waxing Gibbous11Tue
12Wed11:012.28:490.66:397:07Full Moon12Wed
13Thu12:082.29:080.86:407:06Full Moon13Thu
14Fri4:331.41:142.07:011.39:201.06:417:04Full Moon14Fri
15Sat4:211.43:241.88:211.29:251.36:417:03Full Moon15Sat
16Sun1:391.66:031.69:301.09:211.56:427:02Waning Gibbous16Sun
17Mon1:501.810:390.96:427:01Waning Gibbous17Mon
18Tue2:222.112:070.86:436:59Waning Gibbous18Tue
19Wed3:042.23:140.76:436:58Third Quarter19Wed
20Thu3:522.35:010.66:446:57Third Quarter20Thu
21Fri4:472.36:000.66:446:55Third Quarter21Fri
22Sat5:482.26:440.66:456:54Third Quarter22Sat
23Sun6:542.17:130.76:466:53Waning Crescent23Sun
24Mon8:092.07:270.86:466:52Waning Crescent24Mon
25Tue9:341.97:380.96:476:50Waning Crescent25Tue
26Wed3:181.510:56 AM1.95:251.57:511.06:476:49Waning Crescent26Wed
27Thu3:011.512:001.86:421.48:051.16:486:48New Moon27Thu
28Fri2:221.512:581.77:411.28:151.26:486:47New Moon28Fri
29Sat1:111.62:061.68:311.18:171.36:496:45New Moon29Sat
30Sun1:121.84:541.59:141.08:071.46:506:44New Moon30Sun
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 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 spring phase. Tonight's moon is 84% 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 maximum.

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 (84% illuminated). This places Bay Saint Louis, MS in a spring tide cycle, so tidal ranges are near their weekly maximum 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