Tides Today & Tomorrow in Bay Saint Louis, MS

TIDE TIMES for Sunday, July 5, 2026
The tide is currently rising in Bay Saint Louis, MS.
Next low tide : 11:32 pm (0.5 ft)
Next high tide : in 12h 15m at 3:01 pm (1.5 ft)
Sunset today : 8:03 pm
Sunrise tomorrow : 6:00 am
Moon phase : Waning Gibbous (72% illuminated)
Tide Station Location : Station #8747437
Common Questions About Tides

Bay Saint Louis, MS Tides - Sep 1999

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed3:441.91:230.96:337:20Third Quarter1Wed
2Thu4:232.15:040.76:347:19Third Quarter2Thu
3Fri5:122.26:060.56:357:18Third Quarter3Fri
4Sat6:092.36:590.46:357:17Waning Crescent4Sat
5Sun7:152.37:450.46:367:15Waning Crescent5Sun
6Mon8:302.28:210.46:367:14Waning Crescent6Mon
7Tue9:522.28:440.56:377:13Waning Crescent7Tue
8Wed11:052.18:540.76:377:12New Moon8Wed
9Thu12:012.09:000.96:387:11New Moon9Thu
10Fri4:421.412:491.87:291.39:081.06:387:09New Moon10Fri
11Sat4:251.41:351.78:351.29:151.26:397:08New Moon11Sat
12Sun1:461.62:271.59:311.19:161.36:397:07Waxing Crescent12Sun
13Mon2:061.810:251.06:407:06Waxing Crescent13Mon
14Tue2:341.911:261.06:417:04Waxing Crescent14Tue
15Wed3:072.01:081.06:417:03Waxing Crescent15Wed
16Thu3:432.13:230.96:427:02First Quarter16Thu
17Fri4:252.14:440.86:427:00First Quarter17Fri
18Sat5:152.15:430.76:436:59First Quarter18Sat
19Sun6:142.16:310.76:436:58First Quarter19Sun
20Mon7:232.17:110.66:446:57Waxing Gibbous20Mon
21Tue8:422.17:420.76:446:55Waxing Gibbous21Tue
22Wed10:042.08:050.76:456:54Waxing Gibbous22Wed
23Thu11:162.08:180.96:466:53Full Moon23Thu
24Fri3:211.512:191.96:021.48:251.06:466:52Full Moon24Fri
25Sat3:021.51:261.87:211.28:301.26:476:50Full Moon25Sat
26Sun1:421.63:411.68:251.18:371.46:476:49Full Moon26Sun
27Mon1:241.86:031.69:240.98:401.56:486:48Waning Gibbous27Mon
28Tue1:422.010:250.86:486:47Waning Gibbous28Tue
29Wed2:122.211:420.76:496:45Waning Gibbous29Wed
30Thu2:522.32:010.76:506:44Third Quarter30Thu
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 7:16 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 72% 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 Gibbous (72% 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