Tides Today & Tomorrow in Bay Saint Louis, MS

TIDE TIMES for Sunday, August 2, 2026
The tide is currently falling in Bay Saint Louis, MS.
Next low tide : in 3h 23m at 10:15 pm (0.8 ft)
Next high tide (tomorrow) : 4:45 am (1.4 ft)
Sunset today : 7:50 pm
Sunrise tomorrow : 6:16 am
Moon phase : Waning Gibbous (84% illuminated)
Tide Station Location : Station #8747437
Common Questions About Tides

Bay Saint Louis, MS Tides - Jul 1962

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun11:152.19:56-0.15:588:03New Moon1Sun
2Mon12:002.110:26-0.15:598:03New Moon2Mon
3Tue12:432.110:560.05:598:03New Moon3Tue
4Wed1:242.011:250.16:008:03Waxing Crescent4Wed
5Thu2:031.911:520.26:008:03Waxing Crescent5Thu
6Fri2:391.86:008:02Waxing Crescent6Fri
7Sat3:091.612:130.46:018:02Waxing Crescent7Sat
8Sun3:131.312:210.511:570.76:018:02First Quarter8Sun
9Mon11:201.210:460.86:028:02First Quarter9Mon
10Tue7:281.38:340.76:028:02First Quarter10Tue
11Wed7:311.57:500.56:038:02First Quarter11Wed
12Thu8:021.67:530.36:038:01Waxing Gibbous12Thu
13Fri8:451.88:170.16:048:01Waxing Gibbous13Fri
14Sat9:351.98:480.06:048:01Waxing Gibbous14Sat
15Sun10:272.19:20-0.16:058:00Waxing Gibbous15Sun
16Mon11:162.29:53-0.26:068:00Full Moon16Mon
17Tue12:032.310:25-0.26:068:00Full Moon17Tue
18Wed12:472.310:56-0.16:077:59Full Moon18Wed
19Thu1:302.211:220.16:077:59Waning Gibbous19Thu
20Fri2:122.011:430.36:087:58Waning Gibbous20Fri
21Sat2:501.711:570.56:087:58Waning Gibbous21Sat
22Sun3:231.411:580.86:097:57Third Quarter22Sun
23Mon8:441.27:490.96:107:57Third Quarter23Mon
24Tue5:561.47:240.66:107:56Third Quarter24Tue
25Wed6:231.77:380.46:117:56Third Quarter25Wed
26Thu7:081.98:030.26:117:55Waning Crescent26Thu
27Fri8:032.08:300.16:127:55Waning Crescent27Fri
28Sat9:052.18:550.16:137:54Waning Crescent28Sat
29Sun10:072.19:170.16:137:53New Moon29Sun
30Mon11:032.19:370.16:147:53New Moon30Mon
31Tue11:532.19:570.26:147:52New Moon31Tue
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 1:30 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 84% 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 (84% 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