Tides Today & Tomorrow in Bay Saint Louis, MS

TIDE TIMES for Thursday, July 30, 2026
The tide is currently falling in Bay Saint Louis, MS.
Next low tide : in 8h 41m at 10:27 pm (0.2 ft)
Next high tide (tomorrow) : 1:26 pm (2.0 ft)
Sunset today : 7:52 pm
Sunrise tomorrow : 6:14 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #8747437
Common Questions About Tides

Bay Saint Louis, MS Tides - Jun 2080

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat10:472.29:27-0.15:557:55Full Moon1Sat
2Sun11:292.210:05-0.25:557:55Full Moon2Sun
3Mon12:132.310:49-0.15:557:56Full Moon3Mon
4Tue12:552.311:37-0.15:557:56Waning Gibbous4Tue
5Wed1:372.25:557:57Waning Gibbous5Wed
6Thu2:162.212:27-0.15:557:57Waning Gibbous6Thu
7Fri2:512.01:140.05:547:58Waning Gibbous7Fri
8Sat3:191.91:510.15:547:58Third Quarter8Sat
9Sun3:321.62:120.35:547:58Third Quarter9Sun
10Mon2:031.32:040.55:547:59Third Quarter10Mon
11Tue10:581.31:160.79:530.85:547:59Third Quarter11Tue
12Wed9:091.47:590.65:548:00Waning Crescent12Wed
13Thu8:381.67:410.35:558:00Waning Crescent13Thu
14Fri9:011.98:080.05:558:00Waning Crescent14Fri
15Sat9:422.18:47-0.35:558:01Waning Crescent15Sat
16Sun10:312.39:35-0.45:558:01New Moon16Sun
17Mon11:242.510:27-0.55:558:01New Moon17Mon
18Tue12:162.611:22-0.65:558:01New Moon18Tue
19Wed1:072.65:558:02Waxing Crescent19Wed
20Thu1:542.512:17-0.55:568:02Waxing Crescent20Thu
21Fri2:382.21:06-0.35:568:02Waxing Crescent21Fri
22Sat3:161.91:360.05:568:02First Quarter22Sat
23Sun3:421.41:370.35:568:02First Quarter23Sun
24Mon10:191.21:120.78:430.85:578:03First Quarter24Mon
25Tue7:101.48:040.55:578:03First Quarter25Tue
26Wed7:131.78:010.25:578:03Waxing Gibbous26Wed
27Thu7:491.98:090.05:588:03Waxing Gibbous27Thu
28Fri8:362.18:29-0.15:588:03Waxing Gibbous28Fri
29Sat9:282.18:58-0.25:588:03Waxing Gibbous29Sat
30Sun10:232.29:31-0.25:598:03Full Moon30Sun
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 5:56 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 99% 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 Full Moon (99% 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