Tides Today & Tomorrow in Bay Saint Louis, MS

TIDE TIMES for Saturday, July 4, 2026
The tide is currently falling in Bay Saint Louis, MS.
Next low tide : in 7h 11m at 11:39 pm (0.3 ft)
Next high tide (tomorrow) : 3:01 pm (1.5 ft)
Sunset today : 8:03 pm
Sunrise tomorrow : 6:00 am
Moon phase : Waning Gibbous (80% illuminated)
Tide Station Location : Station #8747437
Common Questions About Tides

Bay Saint Louis, MS Tides - Jan 2049

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri8:401.57:11-0.96:535:08Waning Crescent1Fri
2Sat9:371.67:55-1.16:545:09New Moon2Sat
3Sun10:301.68:38-1.16:545:09New Moon3Sun
4Mon11:191.59:18-1.06:545:10New Moon4Mon
5Tue9:52-0.86:545:11Waxing Crescent5Tue
6Wed12:031.310:13-0.66:545:12Waxing Crescent6Wed
7Thu12:441.010:21-0.36:545:12Waxing Crescent7Thu
8Fri1:180.76:490.410:13-0.110:510.36:545:13Waxing Crescent8Fri
9Sat1:400.34:170.69:250.16:545:14First Quarter9Sat
10Sun4:230.85:46-0.16:545:15First Quarter10Sun
11Mon5:001.05:53-0.36:545:16First Quarter11Mon
12Tue5:451.16:05-0.56:545:16First Quarter12Tue
13Wed6:361.26:19-0.66:545:17Waxing Gibbous13Wed
14Thu7:311.26:38-0.76:545:18Waxing Gibbous14Thu
15Fri8:301.27:04-0.86:545:19Waxing Gibbous15Fri
16Sat9:251.27:32-0.86:545:20Waxing Gibbous16Sat
17Sun10:151.28:01-0.86:535:21Full Moon17Sun
18Mon10:581.28:27-0.76:535:22Full Moon18Mon
19Tue11:371.18:49-0.66:535:22Full Moon19Tue
20Wed9:02-0.56:535:23Full Moon20Wed
21Thu12:120.99:06-0.46:525:24Waning Gibbous21Thu
22Fri12:440.75:280.49:02-0.38:430.36:525:25Waning Gibbous22Fri
23Sat1:120.54:120.59:01-0.110:060.26:525:26Waning Gibbous23Sat
24Sun1:260.33:430.78:540.06:515:27Waning Gibbous24Sun
25Mon4:010.95:030.06:515:28Third Quarter25Mon
26Tue4:361.04:39-0.36:505:29Third Quarter26Tue
27Wed5:211.25:01-0.56:505:29Third Quarter27Wed
28Thu6:151.35:40-0.86:495:30Waning Crescent28Thu
29Fri7:181.46:23-0.96:495:31Waning Crescent29Fri
30Sat8:261.57:06-1.06:485:32Waning Crescent30Sat
31Sun9:311.47:45-1.06:485:33Waning 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 7:20 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 80% 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 (80% 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