Tides Today & Tomorrow in Bay Saint Louis, MS

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently rising in Bay Saint Louis, MS.
Next low tide : 11:21 pm (-0.1 ft)
Next high tide : in 7h 12m at 1:00 pm (2.2 ft)
Sunset today : 8:03 pm
Sunrise tomorrow : 5:59 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #8747437
Common Questions About Tides

Bay Saint Louis, MS Tides - Mar 2045

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed10:181.57:44-0.76:225:56Full Moon1Wed
2Thu11:241.28:00-0.46:215:57Full Moon2Thu
3Fri3:260.68:020.07:010.46:205:57Full Moon3Fri
4Sat12:330.91:040.77:550.38:190.26:195:58Full Moon4Sat
5Sun4:310.712:391.17:310.69:290.06:175:59Waning Gibbous5Sun
6Mon1:031.410:45-0.16:165:59Waning Gibbous6Mon
7Tue1:371.66:156:00Waning Gibbous7Tue
8Wed2:181.712:52-0.26:146:01Third Quarter8Wed
9Thu3:041.73:04-0.26:136:01Third Quarter9Thu
10Fri3:571.74:06-0.36:126:02Third Quarter10Fri
11Sat4:561.64:56-0.36:106:03Third Quarter11Sat
12Sun7:021.56:37-0.37:097:03Waning Crescent12Sun
13Mon8:151.57:09-0.37:087:04Waning Crescent13Mon
14Tue9:321.47:34-0.27:077:05Waning Crescent14Tue
15Wed10:451.37:53-0.17:067:05Waning Crescent15Wed
16Thu3:240.88:030.16:280.87:047:06Waning Crescent16Thu
17Fri2:360.98:030.37:440.67:037:07New Moon17Fri
18Sat12:501.01:401.07:470.58:380.47:027:07New Moon18Sat
19Sun2:160.81:221.37:240.69:230.27:017:08New Moon19Sun
20Mon1:301.510:090.17:007:08Waxing Crescent20Mon
21Tue1:521.711:040.06:587:09Waxing Crescent21Tue
22Wed2:221.86:577:10Waxing Crescent22Wed
23Thu3:012.012:43-0.16:567:10Waxing Crescent23Thu
24Fri3:492.03:21-0.26:557:11First Quarter24Fri
25Sat4:462.04:37-0.36:547:12First Quarter25Sat
26Sun5:502.05:35-0.46:527:12First Quarter26Sun
27Mon6:591.96:22-0.46:517:13First Quarter27Mon
28Tue8:201.77:00-0.36:507:13Waxing Gibbous28Tue
29Wed10:161.47:25-0.16:497:14Waxing Gibbous29Wed
30Thu2:441.07:320.26:200.86:477:15Waxing Gibbous30Thu
31Fri1:011.22:071.17:270.67:440.56:467:15Full Moon31Fri
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 6:10 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 97% 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 Full Moon (97% 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