Tides Today & Tomorrow in Bay Saint Louis, MS

TIDE TIMES for Saturday, July 4, 2026
The tide is currently falling in Bay Saint Louis, MS.
Next low tide : in 3h 09m at 11:39 pm (0.3 ft)
Next high tide (tomorrow) : 3:01 pm (1.5 ft)
Sunset today : 8:03 pm
Sunrise tomorrow : 6:00 am
Moon phase : Waning Gibbous (80% illuminated)
Tide Station Location : Station #8747437
Common Questions About Tides

Bay Saint Louis, MS Tides - Apr 2049

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu2:321.01:011.27:000.88:120.46:457:16New Moon1Thu
2Fri4:341.012:131.56:440.99:050.26:447:17New Moon2Fri
3Sat12:341.79:540.16:437:17New Moon3Sat
4Sun1:051.810:450.16:417:18Waxing Crescent4Sun
5Mon1:411.911:450.16:407:18Waxing Crescent5Mon
6Tue2:191.96:397:19Waxing Crescent6Tue
7Wed3:001.91:100.26:387:20Waxing Crescent7Wed
8Thu3:441.92:510.26:377:20First Quarter8Thu
9Fri4:291.83:580.26:357:21First Quarter9Fri
10Sat5:181.64:450.26:347:22First Quarter10Sat
11Sun6:131.55:220.36:337:22First Quarter11Sun
12Mon7:261.35:490.46:327:23Waxing Gibbous12Mon
13Tue1:371.26:040.56:111.06:317:23Waxing Gibbous13Tue
14Wed1:001.26:030.77:060.86:307:24Waxing Gibbous14Wed
15Thu12:591.112:151.35:400.97:490.66:297:25Waxing Gibbous15Thu
16Fri2:431.011:48 AM1.55:151.08:290.46:287:25Full Moon16Fri
17Sat11:581.79:090.26:277:26Full Moon17Sat
18Sun12:231.99:540.16:257:27Full Moon18Sun
19Mon12:562.110:480.06:247:27Full Moon19Mon
20Tue1:332.211:590.06:237:28Waning Gibbous20Tue
21Wed2:152.36:227:28Waning Gibbous21Wed
22Thu3:002.21:410.06:217:29Waning Gibbous22Thu
23Fri3:482.13:080.06:207:30Third Quarter23Fri
24Sat4:381.94:080.06:197:30Third Quarter24Sat
25Sun5:281.74:500.26:187:31Third Quarter25Sun
26Mon1:151.35:110.43:261.36:177:32Waning Crescent26Mon
27Tue12:451.35:090.79:251.06:167:32Waning Crescent27Tue
28Wed12:581.112:321.44:590.97:060.76:157:33Waning Crescent28Wed
29Thu11:211.57:550.46:147:34Waning Crescent29Thu
30Fri10:581.88:380.26:147:34New Moon30Fri
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 7:20 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 80% 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 (80% 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