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 4h 27m 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 - Mar 2000

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:391.36:21-0.46:225:56Waning Crescent1Wed
2Thu8:501.36:56-0.46:215:57Waning Crescent2Thu
3Fri9:511.37:26-0.46:205:57Waning Crescent3Fri
4Sat10:431.37:48-0.36:195:58New Moon4Sat
5Sun11:291.28:01-0.16:185:59New Moon5Sun
6Mon3:460.78:060.06:480.66:165:59New Moon6Mon
7Tue12:141.13:090.78:080.27:540.56:156:00New Moon7Tue
8Wed1:020.91:490.98:110.38:540.36:146:01Waxing Crescent8Wed
9Thu2:050.71:521.18:120.510:010.26:136:01Waxing Crescent9Thu
10Fri2:151.311:460.16:126:02Waxing Crescent10Fri
11Sat2:491.56:116:03First Quarter11Sat
12Sun3:331.62:56-0.16:096:03First Quarter12Sun
13Mon4:261.74:10-0.36:086:04First Quarter13Mon
14Tue5:281.75:08-0.46:076:05First Quarter14Tue
15Wed6:381.65:58-0.46:066:05Waxing Gibbous15Wed
16Thu7:581.66:39-0.46:056:06Waxing Gibbous16Thu
17Fri9:211.47:08-0.36:036:07Waxing Gibbous17Fri
18Sat10:321.37:230.06:026:07Full Moon18Sat
19Sun3:100.87:310.26:300.76:016:08Full Moon19Sun
20Mon2:480.97:370.47:370.56:006:08Full Moon20Mon
21Tue12:230.912:341.17:380.68:350.45:596:09Full Moon21Tue
22Wed4:420.812:471.37:270.79:310.35:576:10Waning Gibbous22Wed
23Thu1:141.510:330.25:566:10Waning Gibbous23Thu
24Fri1:451.65:556:11Waning Gibbous24Fri
25Sat2:201.712:000.25:546:12Waning Gibbous25Sat
26Sun2:591.71:550.15:526:12Third Quarter26Sun
27Mon3:431.73:150.15:516:13Third Quarter27Mon
28Tue4:351.64:130.05:506:13Third Quarter28Tue
29Wed5:371.65:010.05:496:14Third Quarter29Wed
30Thu6:501.55:410.05:486:15Waning Crescent30Thu
31Fri8:151.46:130.15:466:15Waning Crescent31Fri
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