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 5h 14m 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 - Apr 2015

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed2:131.17:020.56:570.86:467:15Waxing Gibbous1Wed
2Thu1:441.17:140.67:490.76:457:16Full Moon2Thu
3Fri1:021.012:591.27:160.78:340.56:437:17Full Moon3Fri
4Sat2:410.912:551.47:070.89:150.46:427:17Full Moon4Sat
5Sun1:101.59:530.46:417:18Full Moon5Sun
6Mon1:331.710:330.36:407:19Waning Gibbous6Mon
7Tue2:021.811:230.36:397:19Waning Gibbous7Tue
8Wed2:341.86:387:20Waning Gibbous8Wed
9Thu3:111.912:540.26:367:20Waning Gibbous9Thu
10Fri3:541.93:000.26:357:21Third Quarter10Fri
11Sat4:421.84:060.16:347:22Third Quarter11Sat
12Sun5:381.74:550.16:337:22Third Quarter12Sun
13Mon6:441.65:350.16:327:23Third Quarter13Mon
14Tue8:131.46:060.36:317:24Waning Crescent14Tue
15Wed1:491.26:270.45:501.06:307:24Waning Crescent15Wed
16Thu12:341.21:461.26:410.77:060.76:287:25Waning Crescent16Thu
17Fri2:201.21:081.36:480.98:070.56:277:25New Moon17Fri
18Sat4:131.112:041.56:461.19:010.36:267:26New Moon18Sat
19Sun12:231.89:540.26:257:27New Moon19Sun
20Mon12:552.010:480.16:247:27Waxing Crescent20Mon
21Tue1:322.111:500.16:237:28Waxing Crescent21Tue
22Wed2:122.16:227:29Waxing Crescent22Wed
23Thu2:542.01:090.26:217:29Waxing Crescent23Thu
24Fri3:381.92:390.36:207:30First Quarter24Fri
25Sat4:221.73:370.36:197:31First Quarter25Sat
26Sun5:081.64:140.46:187:31First Quarter26Sun
27Mon2:001.44:420.56:177:32First Quarter27Mon
28Tue1:221.35:050.66:167:33Waxing Gibbous28Tue
29Wed1:011.35:220.86:500.96:157:33Waxing Gibbous29Wed
30Thu12:431.012:291.45:260.97:340.76:147:34Waxing Gibbous30Thu
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