Tides Today & Tomorrow in Bay Saint Louis, MS

TIDE TIMES for Saturday, August 1, 2026
The tide is currently falling in Bay Saint Louis, MS.
Next low tide : in 2h 54m at 10:21 pm (0.6 ft)
Next high tide (tomorrow) : 6:18 am (1.2 ft)
Sunset today : 7:51 pm
Sunrise tomorrow : 6:15 am
Moon phase : Waning Gibbous (91% illuminated)
Tide Station Location : Station #8747437
Common Questions About Tides

Bay Saint Louis, MS Tides - Jun 1964

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon3:272.02:140.15:557:54Third Quarter1Mon
2Tue3:561.82:500.25:557:55Third Quarter2Tue
3Wed4:101.53:110.35:557:55Third Quarter3Wed
4Thu12:351.33:190.55:557:56Third Quarter4Thu
5Fri11:541.33:210.78:530.85:547:56Waning Crescent5Fri
6Sat1:001.010:59 AM1.43:140.97:380.55:547:57Waning Crescent6Sat
7Sun10:091.78:090.15:547:57Waning Crescent7Sun
8Mon10:292.08:52-0.15:547:57New Moon8Mon
9Tue11:062.29:40-0.35:547:58New Moon9Tue
10Wed11:492.410:33-0.45:547:58New Moon10Wed
11Thu12:352.511:31-0.45:547:59New Moon11Thu
12Fri1:212.45:547:59Waxing Crescent12Fri
13Sat2:072.312:34-0.35:547:59Waxing Crescent13Sat
14Sun2:502.11:33-0.15:548:00Waxing Crescent14Sun
15Mon3:291.82:130.15:548:00First Quarter15Mon
16Tue3:581.52:270.45:548:00First Quarter16Tue
17Wed12:081.32:250.65:558:01First Quarter17Wed
18Thu11:251.31:590.89:160.75:558:01First Quarter18Thu
19Fri9:051.48:490.55:558:01Waxing Gibbous19Fri
20Sat8:551.68:100.35:558:02Waxing Gibbous20Sat
21Sun9:291.88:210.15:558:02Waxing Gibbous21Sun
22Mon10:091.98:500.05:568:02Waxing Gibbous22Mon
23Tue10:502.09:25-0.15:568:02Full Moon23Tue
24Wed11:332.110:02-0.15:568:02Full Moon24Wed
25Thu12:142.110:41-0.15:568:02Full Moon25Thu
26Fri12:542.211:18-0.15:578:03Full Moon26Fri
27Sat1:312.111:520.05:578:03Waning Gibbous27Sat
28Sun2:062.15:578:03Waning Gibbous28Sun
29Mon2:382.012:190.05:588:03Waning Gibbous29Mon
30Tue3:071.812:360.25:588:03Waning Gibbous30Tue
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 2:19 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 91% 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 (91% 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