Tides Today & Tomorrow in Bay Saint Louis, MS

TIDE TIMES for Saturday, August 8, 2026
The tide is currently rising in Bay Saint Louis, MS.
Next low tide (tomorrow) : 8:37 pm (-0.3 ft)
Next high tide (tomorrow) : in 10h 12m at 8:25 am (2.4 ft)
Sunset today : 7:45 pm
Sunrise tomorrow : 6:20 am
Moon phase : Waning Crescent (22% illuminated)
Tide Station Location : Station #8747437
Common Questions About Tides

Bay Saint Louis, MS Tides - Jul 1951

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:312.18:53-0.15:588:03Waning Crescent1Sun
2Mon10:272.19:29-0.25:598:03New Moon2Mon
3Tue11:202.210:06-0.25:598:03New Moon3Tue
4Wed12:072.210:40-0.25:598:03New Moon4Wed
5Thu12:482.211:09-0.16:008:03New Moon5Thu
6Fri1:252.111:290.06:008:02Waxing Crescent6Fri
7Sat1:572.011:380.16:018:02Waxing Crescent7Sat
8Sun2:261.811:350.36:018:02Waxing Crescent8Sun
9Mon2:501.611:290.56:028:02Waxing Crescent9Mon
10Tue8:271.22:591.210:481.111:180.76:028:02First Quarter10Tue
11Wed6:321.38:100.86:038:02First Quarter11Wed
12Thu6:141.56:530.56:038:01First Quarter12Thu
13Fri6:361.86:580.26:048:01First Quarter13Fri
14Sat7:172.07:35-0.16:048:01Waxing Gibbous14Sat
15Sun8:132.28:21-0.36:058:00Waxing Gibbous15Sun
16Mon9:202.49:09-0.56:058:00Waxing Gibbous16Mon
17Tue10:292.59:56-0.66:068:00Full Moon17Tue
18Wed11:312.510:39-0.56:067:59Full Moon18Wed
19Thu12:252.511:14-0.36:077:59Full Moon19Thu
20Fri1:122.311:340.06:087:58Waning Gibbous20Fri
21Sat1:532.011:350.46:087:58Waning Gibbous21Sat
22Sun2:301.611:210.76:097:58Waning Gibbous22Sun
23Mon7:321.13:001.310:451.010:390.96:097:57Waning Gibbous23Mon
24Tue4:461.47:010.86:107:56Third Quarter24Tue
25Wed4:561.76:460.66:117:56Third Quarter25Wed
26Thu5:291.96:510.46:117:55Third Quarter26Thu
27Fri6:102.07:090.26:127:55Third Quarter27Fri
28Sat6:592.17:380.16:127:54Waning Crescent28Sat
29Sun7:582.18:130.06:137:53Waning Crescent29Sun
30Mon9:072.18:470.06:147:53Waning Crescent30Mon
31Tue10:162.29:190.06:147:52Waning Crescent31Tue
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 2:31 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 transitional phase. Tonight's moon is 22% 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 Waning Crescent (22% 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