Tides Today & Tomorrow in Bay Saint Louis, MS

TIDE TIMES for Sunday, August 2, 2026
The tide is currently falling in Bay Saint Louis, MS.
Next low tide : in 4h 09m at 10:15 pm (0.8 ft)
Next high tide (tomorrow) : 4:45 am (1.4 ft)
Sunset today : 7:50 pm
Sunrise tomorrow : 6:16 am
Moon phase : Waning Gibbous (84% illuminated)
Tide Station Location : Station #8747437
Common Questions About Tides

Bay Saint Louis, MS Tides - Aug 2086

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu4:261.85:490.56:167:51Third Quarter1Thu
2Fri5:082.06:330.36:177:50Third Quarter2Fri
3Sat6:002.17:190.16:177:49Third Quarter3Sat
4Sun6:592.18:020.16:187:48Waning Crescent4Sun
5Mon8:052.18:380.16:187:47Waning Crescent5Mon
6Tue9:172.19:030.16:197:47Waning Crescent6Tue
7Wed10:262.19:140.36:207:46New Moon7Wed
8Thu11:222.09:190.46:207:45New Moon8Thu
9Fri12:091.99:280.56:217:44New Moon9Fri
10Sat12:521.89:380.76:217:43New Moon10Sat
11Sun5:331.21:351.68:311.29:440.86:227:42Waxing Crescent11Sun
12Mon4:241.32:201.59:281.19:421.06:237:41Waxing Crescent12Mon
13Tue3:061.53:091.310:221.09:241.16:237:40Waxing Crescent13Tue
14Wed3:201.611:261.06:247:39Waxing Crescent14Wed
15Thu3:461.82:490.96:247:38First Quarter15Thu
16Fri4:191.95:020.76:257:37First Quarter16Fri
17Sat5:002.05:560.66:267:36First Quarter17Sat
18Sun5:512.16:410.46:267:35First Quarter18Sun
19Mon6:492.17:210.36:277:34Waxing Gibbous19Mon
20Tue7:562.27:550.26:277:33Waxing Gibbous20Tue
21Wed9:112.28:250.26:287:32Waxing Gibbous21Wed
22Thu10:252.28:490.36:287:31Waxing Gibbous22Thu
23Fri11:312.29:070.56:297:30Full Moon23Fri
24Sat12:322.09:160.76:307:29Full Moon24Sat
25Sun4:321.31:361.87:281.29:201.06:307:27Full Moon25Sun
26Mon4:021.34:051.68:471.09:191.26:317:26Waning Gibbous26Mon
27Tue1:581.66:371.49:570.99:061.46:317:25Waning Gibbous27Tue
28Wed2:151.911:130.86:327:24Waning Gibbous28Wed
29Thu2:502.11:220.76:327:23Third Quarter29Thu
30Fri3:352.34:480.56:337:22Third Quarter30Fri
31Sat4:282.35:550.46:347:20Third 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 1:30 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 Waning 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