Tides Today & Tomorrow in Bay Saint Louis, MS

TIDE TIMES for Thursday, June 25, 2026
The tide is currently falling in Bay Saint Louis, MS.
Next low tide : in 39m at 8:02 pm (0.0 ft)
Next high tide (tomorrow) : 8:56 am (2.0 ft)
Sunset today : 8:03 pm
Sunrise tomorrow : 5:57 am
Moon phase : Waxing Gibbous (84% illuminated)
Tide Station Location : Station #8747437
Common Questions About Tides

Bay Saint Louis, MS Tides - Oct 2040

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon8:032.17:140.66:516:42Waning Crescent1Mon
2Tue9:302.07:370.76:516:40Waning Crescent2Tue
3Wed10:531.97:480.96:526:39Waning Crescent3Wed
4Thu2:441.512:041.86:101.47:481.16:536:38New Moon4Thu
5Fri1:481.51:191.67:231.27:361.36:536:37New Moon5Fri
6Sat12:521.73:281.58:171.07:231.46:546:36New Moon6Sat
7Sun12:481.99:050.86:546:34New Moon7Sun
8Mon1:032.19:520.66:556:33Waxing Crescent8Mon
9Tue1:292.310:480.56:566:32Waxing Crescent9Tue
10Wed2:032.412:140.56:566:31Waxing Crescent10Wed
11Thu2:442.52:410.46:576:30First Quarter11Thu
12Fri3:352.54:110.36:586:29First Quarter12Fri
13Sat4:352.55:140.26:586:27First Quarter13Sat
14Sun5:432.46:070.26:596:26First Quarter14Sun
15Mon6:562.26:470.47:006:25Waxing Gibbous15Mon
16Tue8:212.07:100.67:006:24Waxing Gibbous16Tue
17Wed2:241.411:19 AM1.74:421.47:120.97:016:23Waxing Gibbous17Wed
18Thu2:001.41:451.66:221.17:041.27:026:22Full Moon18Thu
19Fri12:561.53:591.57:370.86:431.47:026:21Full Moon19Fri
20Sat8:360.67:036:20Full Moon20Sat
21Sun12:002.19:270.47:046:19Full Moon21Sun
22Mon12:302.210:170.37:046:18Waning Gibbous22Mon
23Tue1:042.311:100.37:056:17Waning Gibbous23Tue
24Wed1:402.312:180.47:066:16Waning Gibbous24Wed
25Thu2:202.31:520.47:066:15Waning Gibbous25Thu
26Fri3:042.23:140.47:076:14Third Quarter26Fri
27Sat3:542.14:120.47:086:13Third Quarter27Sat
28Sun4:512.04:560.47:096:12Third Quarter28Sun
29Mon5:541.85:290.57:096:11Third Quarter29Mon
30Tue7:081.65:500.67:106:11Waning Crescent30Tue
31Wed1:491.48:55 AM1.45:101.35:560.87:116:10Waning Crescent31Wed
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 2:29 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 Waxing 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