Tides Today & Tomorrow in Bay Saint Louis, MS

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently falling in Bay Saint Louis, MS.
Next low tide : in 12h 35m at 8:04 pm (0.4 ft)
Next high tide (tomorrow) : 7:27 am (1.8 ft)
Sunset today : 8:02 pm
Sunrise tomorrow : 5:56 am
Moon phase : First Quarter (68% illuminated)
Tide Station Location : Station #8747437
Common Questions About Tides

Bay Saint Louis, MS Tides - Jan 2037

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu10:331.68:25-0.96:535:08Full Moon1Thu
2Fri11:201.69:08-1.06:545:08Full Moon2Fri
3Sat9:52-1.06:545:09Full Moon3Sat
4Sun12:051.510:34-0.96:545:10Waning Gibbous4Sun
5Mon12:491.411:10-0.76:545:11Waning Gibbous5Mon
6Tue1:311.111:35-0.46:545:12Waning Gibbous6Tue
7Wed2:080.88:510.411:46-0.26:545:12Third Quarter7Wed
8Thu2:220.48:310.512:110.411:32 AM0.16:545:13Third Quarter8Thu
9Fri5:420.76:30-0.16:545:14Third Quarter9Fri
10Sat6:131.06:27-0.36:545:15Waning Crescent10Sat
11Sun6:581.16:34-0.66:545:16Waning Crescent11Sun
12Mon7:491.26:52-0.76:545:16Waning Crescent12Mon
13Tue8:421.37:17-0.86:545:17Waning Crescent13Tue
14Wed9:341.37:45-0.86:545:18New Moon14Wed
15Thu10:231.38:15-0.86:545:19New Moon15Thu
16Fri11:071.28:45-0.86:545:20New Moon16Fri
17Sat11:491.29:14-0.76:535:21New Moon17Sat
18Sun9:42-0.66:535:22Waxing Crescent18Sun
19Mon12:271.010:04-0.56:535:22Waxing Crescent19Mon
20Tue1:020.910:16-0.46:535:23Waxing Crescent20Tue
21Wed1:320.710:09-0.26:525:24Waxing Crescent21Wed
22Thu1:410.56:160.49:50-0.16:525:25First Quarter22Thu
23Fri5:160.68:530.06:525:26First Quarter23Fri
24Sat5:260.86:10-0.16:515:27First Quarter24Sat
25Sun5:560.95:33-0.36:515:28First Quarter25Sun
26Mon6:391.15:50-0.56:505:29Waxing Gibbous26Mon
27Tue7:331.26:22-0.76:505:29Waxing Gibbous27Tue
28Wed8:321.46:59-0.96:495:30Waxing Gibbous28Wed
29Thu9:321.47:38-1.06:495:31Waxing Gibbous29Thu
30Fri10:271.58:16-1.06:485:32Full Moon30Fri
31Sat11:181.48:53-1.06:485:33Full Moon31Sat
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 am — 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 68% 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 First Quarter (68% 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