Tides Today & Tomorrow in Bay Saint Louis, MS

TIDE TIMES for Friday, July 10, 2026
The tide is currently rising in Bay Saint Louis, MS.
Next low tide : 7:52 pm (-0.2 ft)
Next high tide : in 5h 02m at 7:38 am (2.1 ft)
Sunset today : 8:02 pm
Sunrise tomorrow : 6:03 am
Moon phase : Waning Crescent (19% illuminated)
Tide Station Location : Station #8747437
Common Questions About Tides

Bay Saint Louis, MS Tides - Sep 1991

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun4:282.45:200.46:337:20Third Quarter1Sun
2Mon5:262.46:190.26:347:19Third Quarter2Mon
3Tue6:322.47:100.16:347:18Waning Crescent3Tue
4Wed7:472.47:530.26:357:17Waning Crescent4Wed
5Thu9:142.38:270.36:367:16Waning Crescent5Thu
6Fri10:482.28:450.66:367:14Waning Crescent6Fri
7Sat12:142.08:460.96:377:13New Moon7Sat
8Sun3:471.41:521.87:071.28:401.26:377:12New Moon8Sun
9Mon2:411.44:191.68:261.08:311.46:387:11New Moon9Mon
10Tue12:571.89:290.96:387:09Waxing Crescent10Tue
11Wed1:202.010:280.86:397:08Waxing Crescent11Wed
12Thu1:532.211:340.76:397:07Waxing Crescent12Thu
13Fri2:312.31:160.76:407:06Waxing Crescent13Fri
14Sat3:142.33:370.76:417:04First Quarter14Sat
15Sun4:032.34:510.66:417:03First Quarter15Sun
16Mon5:002.35:440.66:427:02First Quarter16Mon
17Tue6:022.26:270.66:427:01First Quarter17Tue
18Wed7:102.17:010.66:436:59Waxing Gibbous18Wed
19Thu8:272.17:270.76:436:58Waxing Gibbous19Thu
20Fri9:542.07:440.86:446:57Waxing Gibbous20Fri
21Sat11:171.97:511.06:446:56Waxing Gibbous21Sat
22Sun2:091.512:311.76:311.37:431.26:456:54Full Moon22Sun
23Mon1:151.62:001.67:351.17:231.46:456:53Full Moon23Mon
24Tue12:401.84:281.58:270.97:051.56:466:52Full Moon24Tue
25Wed12:462.09:140.86:476:50Full Moon25Wed
26Thu1:072.210:050.76:476:49Waning Gibbous26Thu
27Fri1:382.411:090.66:486:48Waning Gibbous27Fri
28Sat2:172.51:070.56:486:47Waning Gibbous28Sat
29Sun3:042.53:310.46:496:45Third Quarter29Sun
30Mon3:592.54:440.36:496:44Third 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 1:45 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 19% 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 (19% 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