Tides Today & Tomorrow in Bay Saint Louis, MS

TIDE TIMES for Friday, July 10, 2026
The tide is currently falling in Bay Saint Louis, MS.
Next low tide : in 9h 34m at 7:52 pm (-0.2 ft)
Next high tide (tomorrow) : 8:38 am (2.3 ft)
Sunset today : 8:02 pm
Sunrise tomorrow : 6:03 am
Moon phase : Waning Crescent (19% illuminated)
Tide Station Location : Station #8747437
Common Questions About Tides

Bay Saint Louis, MS Tides - Jul 2058

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon8:111.67:440.35:598:03Waxing Gibbous1Mon
2Tue8:421.88:070.05:598:03Waxing Gibbous2Tue
3Wed9:272.18:43-0.26:008:03Waxing Gibbous3Wed
4Thu10:192.29:26-0.46:008:03Full Moon4Thu
5Fri11:132.410:13-0.56:018:03Full Moon5Fri
6Sat12:052.511:01-0.56:018:03Full Moon6Sat
7Sun12:552.511:48-0.46:018:02Waning Gibbous7Sun
8Mon1:412.46:028:02Waning Gibbous8Mon
9Tue2:252.112:29-0.26:028:02Waning Gibbous9Tue
10Wed3:031.812:530.16:038:02Waning Gibbous10Wed
11Thu3:311.412:550.56:048:01Third Quarter11Thu
12Fri9:351.212:320.78:220.86:048:01Third Quarter12Fri
13Sat6:241.47:560.56:058:01Third Quarter13Sat
14Sun6:471.77:590.36:058:01Waning Crescent14Sun
15Mon7:281.98:070.16:068:00Waning Crescent15Mon
16Tue8:172.08:220.06:068:00Waning Crescent16Tue
17Wed9:132.18:450.06:077:59Waning Crescent17Wed
18Thu10:112.19:140.06:077:59New Moon18Thu
19Fri11:062.19:450.06:087:59New Moon19Fri
20Sat11:552.210:160.06:087:58New Moon20Sat
21Sun12:382.110:440.06:097:58New Moon21Sun
22Mon1:172.111:070.16:107:57Waxing Crescent22Mon
23Tue1:522.011:210.36:107:57Waxing Crescent23Tue
24Wed2:241.811:220.46:117:56Waxing Crescent24Wed
25Thu2:491.611:150.66:117:55Waxing Crescent25Thu
26Fri3:011.311:060.86:127:55Waxing Crescent26Fri
27Sat6:081.39:560.96:137:54First Quarter27Sat
28Sun5:571.57:020.76:137:54First Quarter28Sun
29Mon6:191.76:510.56:147:53First Quarter29Mon
30Tue6:581.97:180.26:147:52Waxing Gibbous30Tue
31Wed7:502.17:570.06:157:51Waxing Gibbous31Wed
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 2:15 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 19% 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 Crescent (19% 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