Tides Today & Tomorrow in Bay Saint Louis, MS

TIDE TIMES for Monday, July 6, 2026
The tide is currently rising in Bay Saint Louis, MS.
Next low tide : 11:48 am (1.1 ft)
Next high tide : in 2h 01m at 8:21 am (1.2 ft)
Sunset today : 8:02 pm
Sunrise tomorrow : 6:01 am
Moon phase : Third Quarter (62% illuminated)
Tide Station Location : Station #8747437
Common Questions About Tides

Bay Saint Louis, MS Tides - Aug 2051

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue6:472.07:480.26:157:51Waning Crescent1Tue
2Wed7:472.18:250.16:167:50Waning Crescent2Wed
3Thu8:552.18:550.16:177:49Waning Crescent3Thu
4Fri10:042.19:140.26:177:49Waning Crescent4Fri
5Sat11:042.09:240.36:187:48New Moon5Sat
6Sun11:532.09:340.46:197:47New Moon6Sun
7Mon12:371.99:460.66:197:46New Moon7Mon
8Tue1:181.79:570.76:207:45Waxing Crescent8Tue
9Wed6:021.21:591.69:051.210:050.86:207:44Waxing Crescent9Wed
10Thu3:561.32:401.410:011.110:021.06:217:43Waxing Crescent10Thu
11Fri3:371.43:211.211:021.19:371.06:227:43Waxing Crescent11Fri
12Sat3:591.63:491.01:171.06:227:42First Quarter12Sat
13Sun4:301.75:360.96:237:41First Quarter13Sun
14Mon5:081.86:010.76:237:40First Quarter14Mon
15Tue5:531.96:390.56:247:39First Quarter15Tue
16Wed6:462.07:160.46:257:38Waxing Gibbous16Wed
17Thu7:482.07:500.36:257:37Waxing Gibbous17Thu
18Fri8:582.18:200.36:267:36Waxing Gibbous18Fri
19Sat10:092.18:450.36:267:35Waxing Gibbous19Sat
20Sun11:112.19:050.46:277:33Full Moon20Sun
21Mon12:062.19:180.66:277:32Full Moon21Mon
22Tue12:572.09:280.76:287:31Full Moon22Tue
23Wed4:531.31:501.88:061.29:351.06:297:30Full Moon23Wed
24Thu4:311.42:581.59:161.09:401.16:297:29Waning Gibbous24Thu
25Fri2:341.66:591.410:250.99:341.36:307:28Waning Gibbous25Fri
26Sat2:551.811:510.96:307:27Waning Gibbous26Sat
27Sun3:322.04:320.76:317:26Third Quarter27Sun
28Mon4:192.15:390.66:317:25Third Quarter28Mon
29Tue5:132.26:350.56:327:23Third Quarter29Tue
30Wed6:122.27:220.46:337:22Waning Crescent30Wed
31Thu7:182.18:000.56:337:21Waning Crescent31Thu
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 10:04 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 transitional phase. Tonight's moon is 62% 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 (62% 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