Tides Today & Tomorrow in Bay Saint Louis, MS

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently falling in Bay Saint Louis, MS.
Next low tide : in 1h 19m at 8:04 pm (0.4 ft)
Next high tide (tomorrow) : 7:27 am (1.8 ft)
Sunset today : 8:02 pm
Sunrise tomorrow : 5:56 am
Moon phase : First Quarter (68% illuminated)
Tide Station Location : Station #8747437
Common Questions About Tides

Bay Saint Louis, MS Tides - Oct 2037

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu3:492.24:110.76:516:42Third Quarter1Thu
2Fri4:422.35:090.66:516:41Third Quarter2Fri
3Sat5:452.25:580.56:526:40Third Quarter3Sat
4Sun6:582.26:390.56:526:38Waning Crescent4Sun
5Mon8:252.17:130.66:536:37Waning Crescent5Mon
6Tue10:162.07:380.76:546:36Waning Crescent6Tue
7Wed2:561.512:191.95:361.47:541.06:546:35New Moon7Wed
8Thu2:421.42:211.77:031.28:021.26:556:34New Moon8Thu
9Fri12:441.54:271.68:140.98:031.56:556:32New Moon9Fri
10Sat12:221.89:160.76:566:31Waxing Crescent10Sat
11Sun12:472.110:180.66:576:30Waxing Crescent11Sun
12Mon1:222.311:270.56:576:29Waxing Crescent12Mon
13Tue2:032.41:030.56:586:28Waxing Crescent13Tue
14Wed2:482.43:050.56:596:27First Quarter14Wed
15Thu3:382.34:170.56:596:26First Quarter15Thu
16Fri4:332.25:050.67:006:24First Quarter16Fri
17Sat5:342.05:370.67:016:23First Quarter17Sat
18Sun6:411.86:010.77:016:22Waxing Gibbous18Sun
19Mon7:591.76:200.97:026:21Waxing Gibbous19Mon
20Tue1:431.59:44 AM1.55:241.36:351.07:036:20Waxing Gibbous20Tue
21Wed1:221.512:031.46:291.26:441.17:036:19Waxing Gibbous21Wed
22Thu12:351.51:531.47:241.06:361.27:046:18Full Moon22Thu
23Fri12:011.68:110.87:056:17Full Moon23Fri
24Sat12:081.88:530.77:066:16Full Moon24Sat
25Sun12:261.99:310.57:066:15Full Moon25Sun
26Mon12:512.010:100.57:076:14Waning Gibbous26Mon
27Tue1:202.110:550.47:086:13Waning Gibbous27Tue
28Wed1:532.212:010.47:096:13Waning Gibbous28Wed
29Thu2:322.21:470.47:096:12Waning Gibbous29Thu
30Fri3:162.13:110.37:106:11Third Quarter30Fri
31Sat4:072.14:060.37:116:10Third Quarter31Sat
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 1:45 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 transitional phase. Tonight's moon is 68% 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 shifting between spring and neap.

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 First Quarter (68% illuminated). This places Bay Saint Louis, MS in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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