Tides Today & Tomorrow in Bay Saint Louis, MS

TIDE TIMES for Saturday, July 25, 2026
The tide is currently falling in Bay Saint Louis, MS.
Next low tide : in 7h 26m at 8:24 pm (0.0 ft)
Next high tide (tomorrow) : 9:29 am (2.1 ft)
Sunset today : 7:56 pm
Sunrise tomorrow : 6:11 am
Moon phase : Waxing Gibbous (86% illuminated)
Tide Station Location : Station #8747437
Common Questions About Tides

Bay Saint Louis, MS Tides - Jan 1975

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:471.210:31-0.56:535:07Waning Gibbous1Wed
2Thu1:250.97:290.510:39-0.210:110.46:545:08Waning Gibbous2Thu
3Fri1:540.57:150.510:320.06:545:09Third Quarter3Fri
4Sat4:450.75:490.06:545:09Third Quarter4Sat
5Sun5:121.05:46-0.36:545:10Third Quarter5Sun
6Mon5:551.26:05-0.56:545:11Waning Crescent6Mon
7Tue6:461.36:32-0.76:545:12Waning Crescent7Tue
8Wed7:411.37:01-0.86:545:12Waning Crescent8Wed
9Thu8:381.37:28-0.86:555:13Waning Crescent9Thu
10Fri9:331.37:52-0.86:555:14New Moon10Fri
11Sat10:211.28:15-0.86:545:15New Moon11Sat
12Sun11:051.28:39-0.76:545:16New Moon12Sun
13Mon11:461.19:01-0.66:545:17New Moon13Mon
14Tue9:21-0.56:545:17Waxing Crescent14Tue
15Wed12:240.99:33-0.46:545:18Waxing Crescent15Wed
16Thu12:580.76:090.49:31-0.29:160.36:545:19Waxing Crescent16Thu
17Fri1:270.55:090.59:12-0.16:545:20Waxing Crescent17Fri
18Sat4:210.68:380.06:545:21First Quarter18Sat
19Sun4:330.86:00-0.16:535:22First Quarter19Sun
20Mon5:020.95:15-0.36:535:23First Quarter20Mon
21Tue5:421.15:25-0.56:535:23First Quarter21Tue
22Wed6:331.25:55-0.66:525:24Waxing Gibbous22Wed
23Thu7:311.36:30-0.86:525:25Waxing Gibbous23Thu
24Fri8:341.47:06-0.96:525:26Waxing Gibbous24Fri
25Sat9:351.47:41-1.06:515:27Waxing Gibbous25Sat
26Sun10:301.48:13-1.06:515:28Full Moon26Sun
27Mon11:201.38:41-0.96:505:29Full Moon27Mon
28Tue9:02-0.76:505:30Full Moon28Tue
29Wed12:071.05:370.39:15-0.47:440.36:495:30Waning Gibbous29Wed
30Thu12:500.75:230.49:19-0.19:160.16:495:31Waning Gibbous30Thu
31Fri1:270.42:310.59:100.111:040.06:485:32Waning Gibbous31Fri
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 2:56 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 86% 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 Waxing Gibbous (86% 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