Tides Today & Tomorrow in Bay Saint Louis, MS

TIDE TIMES for Saturday, July 11, 2026
The tide is currently rising in Bay Saint Louis, MS.
Next low tide : 8:39 pm (-0.4 ft)
Next high tide : in 8h 26m at 8:38 am (2.3 ft)
Sunset today : 8:02 pm
Sunrise tomorrow : 6:03 am
Moon phase : Waning Crescent (11% illuminated)
Tide Station Location : Station #8747437
Common Questions About Tides

Bay Saint Louis, MS Tides - Apr 1990

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun4:012.14:06-0.36:467:16First Quarter1Sun
2Mon4:592.05:13-0.36:457:16First Quarter2Mon
3Tue6:001.86:05-0.26:437:17First Quarter3Tue
4Wed7:031.66:41-0.16:427:17Waxing Gibbous4Wed
5Thu8:171.36:510.26:417:18Waxing Gibbous5Thu
6Fri2:041.16:400.45:570.96:407:19Waxing Gibbous6Fri
7Sat1:361.26:310.67:150.76:397:19Waxing Gibbous7Sat
8Sun1:561.012:281.36:210.88:090.56:377:20Full Moon8Sun
9Mon12:061.68:540.36:367:20Full Moon9Mon
10Tue12:211.89:350.26:357:21Full Moon10Tue
11Wed12:461.910:180.16:347:22Full Moon11Wed
12Thu1:152.011:080.16:337:22Waning Gibbous12Thu
13Fri1:482.06:327:23Waning Gibbous13Fri
14Sat2:242.112:220.16:317:24Waning Gibbous14Sat
15Sun3:052.12:100.16:297:24Waning Gibbous15Sun
16Mon3:482.03:290.06:287:25Third Quarter16Mon
17Tue4:352.04:220.06:277:25Third Quarter17Tue
18Wed5:251.85:010.06:267:26Third Quarter18Wed
19Thu6:221.65:300.16:257:27Third Quarter19Thu
20Fri7:491.45:480.36:247:27Waning Crescent20Fri
21Sat1:161.25:530.55:561.06:237:28Waning Crescent21Sat
22Sun12:091.212:371.35:470.87:060.66:227:29Waning Crescent22Sun
23Mon2:291.211:29 AM1.55:301.18:020.36:217:29New Moon23Mon
24Tue11:261.88:560.06:207:30New Moon24Tue
25Wed11:522.19:52-0.26:197:31New Moon25Wed
26Thu12:302.410:58-0.36:187:31New Moon26Thu
27Fri1:132.56:177:32Waxing Crescent27Fri
28Sat2:012.512:26-0.36:167:33Waxing Crescent28Sat
29Sun2:502.42:17-0.26:157:33Waxing Crescent29Sun
30Mon3:402.23:35-0.16:147:34First Quarter30Mon
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 2:38 pm — 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 11% 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 Crescent (11% 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