30.3264’ N, 89.3258’ W

Bay Saint Louis, MS

78°
H -°
L 75°
WNW
1mph
Low tide
9:45 am

Tides Today & Tomorrow in Bay Saint Louis, MS

TIDE TIMES for Sunday, September 13, 2026
The tide is currently falling in Bay Saint Louis, MS.
Next low tide : in 6h 42m at 9:45 am (0.9 ft)
Next high tide (tomorrow) : 1:31 am (2.1 ft)
Sunset today : 7:05 pm
Sunrise tomorrow : 6:40 am
Moon phase : Waxing Crescent (8% illuminated)
Tide Station Location : Station #8747437
Common Questions About Tides

Bay Saint Louis, MS Tides - May 1882

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon10:171.77:470.35:226:44Full Moon1Mon
2Tue10:401.98:240.25:226:45Full Moon2Tue
3Wed11:102.09:030.15:216:45Full Moon3Wed
4Thu11:442.19:460.15:206:46Full Moon4Thu
5Fri12:212.210:370.05:196:47Waning Gibbous5Fri
6Sat1:002.311:410.05:186:47Waning Gibbous6Sat
7Sun1:402.25:176:48Waning Gibbous7Sun
8Mon2:232.112:520.15:176:48Waning Gibbous8Mon
9Tue3:061.91:490.15:166:49Third Quarter9Tue
10Wed3:491.62:290.35:156:50Third Quarter10Wed
11Thu11:301.34:291.32:520.52:271.35:146:50Third Quarter11Thu
12Fri11:071.311:511.13:010.87:580.95:146:51Waning Crescent12Fri
13Sat10:531.42:561.06:250.65:136:52Waning Crescent13Sat
14Sun9:181.67:010.35:126:52Waning Crescent14Sun
15Mon9:251.97:420.15:126:53New Moon15Mon
16Tue10:002.18:240.05:116:54New Moon16Tue
17Wed10:412.29:07-0.15:116:54New Moon17Wed
18Thu11:232.29:500.05:106:55New Moon18Thu
19Fri12:042.210:340.05:096:56Waxing Crescent19Fri
20Sat12:452.211:190.15:096:56Waxing Crescent20Sat
21Sun1:252.05:086:57Waxing Crescent21Sun
22Mon2:031.912:030.25:086:57Waxing Crescent22Mon
23Tue2:361.712:430.45:076:58First Quarter23Tue
24Wed2:501.41:140.55:076:59First Quarter24Wed
25Thu11:241.31:300.75:076:59First Quarter25Thu
26Fri10:271.312:290.88:220.85:067:00First Quarter26Fri
27Sat9:031.46:560.65:067:00Waxing Gibbous27Sat
28Sun8:251.66:570.45:067:01Waxing Gibbous28Sun
29Mon8:491.87:250.25:057:02Waxing Gibbous29Mon
30Tue9:241.97:580.15:057:02Waxing Gibbous30Tue
31Wed10:032.18:34-0.15:057:03Full Moon31Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8747437)

Common Questions About Bay Saint Louis, MS Tides

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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 8% 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 Crescent (8% 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