Tides Today & Tomorrow in Bay Saint Louis, MS

TIDE TIMES for Thursday, July 16, 2026
The tide is currently rising in Bay Saint Louis, MS.
Next low tide : 11:35 pm (0.1 ft)
Next high tide : in 6h 59m at 1:27 pm (2.2 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 6:06 am
Moon phase : Waxing Crescent (7% illuminated)
Tide Station Location : Station #8747437
Common Questions About Tides

Bay Saint Louis, MS Tides - Sep 1984

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:332.24:070.66:347:20First Quarter1Sat
2Sun4:192.35:290.56:347:18First Quarter2Sun
3Mon5:132.46:290.46:357:17First Quarter3Mon
4Tue6:132.47:180.36:357:16Waxing Gibbous4Tue
5Wed7:212.37:570.46:367:15Waxing Gibbous5Wed
6Thu8:362.28:230.46:377:13Waxing Gibbous6Thu
7Fri9:542.28:380.56:377:12Waxing Gibbous7Fri
8Sat11:002.18:500.76:387:11Full Moon8Sat
9Sun11:532.19:010.86:387:10Full Moon9Sun
10Mon4:441.412:411.97:051.49:101.06:397:08Full Moon10Mon
11Tue3:581.41:291.88:151.39:111.16:397:07Full Moon11Tue
12Wed2:231.62:261.69:081.28:581.36:407:06Waning Gibbous12Wed
13Thu2:151.75:481.49:551.08:271.46:407:05Waning Gibbous13Thu
14Fri2:271.910:410.96:417:03Waning Gibbous14Fri
15Sat2:472.111:420.96:417:02Waning Gibbous15Sat
16Sun3:152.22:490.86:427:01Third Quarter16Sun
17Mon3:532.34:300.76:437:00Third Quarter17Mon
18Tue4:442.35:330.56:436:58Third Quarter18Tue
19Wed5:462.46:250.46:446:57Third Quarter19Wed
20Thu6:582.47:090.36:446:56Waning Crescent20Thu
21Fri8:202.47:460.36:456:55Waning Crescent21Fri
22Sat9:502.38:160.46:456:53Waning Crescent22Sat
23Sun11:162.28:370.66:466:52New Moon23Sun
24Mon12:402.18:471.06:466:51New Moon24Mon
25Tue3:381.42:471.87:341.28:481.36:476:50New Moon25Tue
26Wed1:051.65:201.78:500.98:371.56:486:48New Moon26Wed
27Thu1:011.99:590.76:486:47Waxing Crescent27Thu
28Fri1:282.211:110.66:496:46Waxing Crescent28Fri
29Sat2:062.412:520.56:496:45Waxing Crescent29Sat
30Sun2:502.53:190.56:506:43First Quarter30Sun
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 6:31 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 spring phase. Tonight's moon is 7% 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 Waxing Crescent (7% 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