Tides Today & Tomorrow in Bay Saint Louis, MS

TIDE TIMES for Friday, July 31, 2026
The tide is currently rising in Bay Saint Louis, MS.
Next low tide : 10:27 pm (0.4 ft)
Next high tide : in 6h 28m at 1:26 pm (2.0 ft)
Sunset today : 7:52 pm
Sunrise tomorrow : 6:15 am
Moon phase : Waning Gibbous (96% illuminated)
Tide Station Location : Station #8747437
Common Questions About Tides

Bay Saint Louis, MS Tides - Apr 1967

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:262.03:42-0.25:466:15Third Quarter1Sat
2Sun4:261.94:42-0.25:456:16Third Quarter2Sun
3Mon5:301.75:27-0.25:446:17Third Quarter3Mon
4Tue6:401.65:560.05:436:17Waning Crescent4Tue
5Wed7:591.46:090.15:426:18Waning Crescent5Wed
6Thu1:491.16:140.34:581.05:406:18Waning Crescent6Thu
7Fri1:191.16:180.56:160.85:396:19Waning Crescent7Fri
8Sat12:281.26:170.77:130.65:386:20New Moon8Sat
9Sun12:451.011:51 AM1.45:590.87:590.45:376:20New Moon9Sun
10Mon11:531.68:400.35:366:21New Moon10Mon
11Tue12:091.89:190.25:346:21New Moon11Tue
12Wed12:311.910:040.15:336:22Waxing Crescent12Wed
13Thu12:592.011:150.15:326:23Waxing Crescent13Thu
14Fri1:332.15:316:23Waxing Crescent14Fri
15Sat2:142.11:240.15:306:24Waxing Crescent15Sat
16Sun3:022.12:480.05:296:25First Quarter16Sun
17Mon3:572.13:44-0.15:286:25First Quarter17Mon
18Tue4:592.04:28-0.15:276:26First Quarter18Tue
19Wed6:101.85:03-0.15:266:26Waxing Gibbous19Wed
20Thu7:531.65:290.15:246:27Waxing Gibbous20Thu
21Fri1:131.25:440.44:581.05:236:28Waxing Gibbous21Fri
22Sat12:351.25:490.76:230.75:226:28Waxing Gibbous22Sat
23Sun1:431.211:02 AM1.55:411.07:260.35:216:29Full Moon23Sun
24Mon10:541.88:240.05:206:30Full Moon24Mon
25Tue11:192.19:22-0.15:196:30Full Moon25Tue
26Wed11:542.410:29-0.25:186:31Waning Gibbous26Wed
27Thu12:362.45:176:32Waning Gibbous27Thu
28Fri1:222.412:04-0.25:166:32Waning Gibbous28Fri
29Sat2:112.31:53-0.15:156:33Third Quarter29Sat
30Sun4:022.14:020.06:157:34Third 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 5:56 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 96% 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 Waning Gibbous (96% 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