30.3264’ N, 89.3258’ W

Bay Saint Louis, MS

85°
H -°
L 76°
SE
4mph
High tide
3:47 am

Tides Today & Tomorrow in Bay Saint Louis, MS

TIDE TIMES for Wednesday, September 2, 2026
The tide is currently rising in Bay Saint Louis, MS.
Next low tide (tomorrow) : 4:24 pm (0.5 ft)
Next high tide (tomorrow) : in 8h 14m at 3:47 am (2.4 ft)
Sunset today : 7:19 pm
Sunrise tomorrow : 6:34 am
Moon phase : Third Quarter (68% illuminated)
Tide Station Location : Station #8747437
Common Questions About Tides

Bay Saint Louis, MS Tides - Jun 1909

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue9:351.87:430.24:556:54Waxing Gibbous1Tue
2Wed10:012.08:180.04:556:54Full Moon2Wed
3Thu10:342.18:55-0.14:556:55Full Moon3Thu
4Fri11:112.39:37-0.24:556:55Full Moon4Fri
5Sat11:502.310:25-0.24:546:56Full Moon5Sat
6Sun12:312.411:20-0.24:546:56Waning Gibbous6Sun
7Mon1:132.44:546:57Waning Gibbous7Mon
8Tue1:562.312:17-0.24:546:57Waning Gibbous8Tue
9Wed2:372.11:08-0.14:546:57Third Quarter9Wed
10Thu3:161.81:450.14:546:58Third Quarter10Thu
11Fri3:411.42:050.34:546:58Third Quarter11Fri
12Sat10:451.311:290.92:100.68:080.84:546:59Third Quarter12Sat
13Sun10:141.41:490.97:160.54:546:59Waning Crescent13Sun
14Mon8:161.67:090.24:546:59Waning Crescent14Mon
15Tue8:401.97:40-0.14:547:00Waning Crescent15Tue
16Wed9:212.18:18-0.24:547:00New Moon16Wed
17Thu10:062.38:58-0.34:547:00New Moon17Thu
18Fri10:522.39:39-0.24:557:01New Moon18Fri
19Sat11:382.310:21-0.24:557:01New Moon19Sat
20Sun12:212.211:01-0.14:557:01Waxing Crescent20Sun
21Mon1:032.111:380.04:557:02Waxing Crescent21Mon
22Tue1:412.04:557:02Waxing Crescent22Tue
23Wed2:151.812:110.24:567:02First Quarter23Wed
24Thu2:361.512:340.34:567:02First Quarter24Thu
25Fri11:541.312:410.511:450.74:567:02First Quarter25Fri
26Sat10:061.28:350.74:567:02First Quarter26Sat
27Sun7:271.47:090.64:577:02First Quarter27Sun
28Mon7:261.66:490.34:577:03Waxing Gibbous28Mon
29Tue7:541.87:120.14:577:03Waxing Gibbous29Tue
30Wed8:341.97:45-0.14:587:03Waxing Gibbous30Wed
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 transitional phase. Tonight's moon is 68% 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 shifting between spring and neap.

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 (68% illuminated). This places Bay Saint Louis, MS in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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