Tides Today & Tomorrow in Bay Saint Louis, MS

TIDE TIMES for Saturday, July 4, 2026
The tide is currently rising in Bay Saint Louis, MS.
Next low tide : 11:39 pm (0.3 ft)
Next high tide : in 10h 15m at 2:36 pm (1.8 ft)
Sunset today : 8:03 pm
Sunrise tomorrow : 6:00 am
Moon phase : Waning Gibbous (80% illuminated)
Tide Station Location : Station #8747437
Common Questions About Tides

Bay Saint Louis, MS Tides - Mar 2001

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu3:211.32:010.16:225:56First Quarter1Thu
2Fri4:021.43:38-0.16:215:56First Quarter2Fri
3Sat4:531.64:31-0.36:205:57First Quarter3Sat
4Sun5:561.65:22-0.56:195:58First Quarter4Sun
5Mon7:091.76:09-0.66:185:59Waxing Gibbous5Mon
6Tue8:291.66:53-0.76:175:59Waxing Gibbous6Tue
7Wed9:461.67:30-0.66:166:00Waxing Gibbous7Wed
8Thu10:511.57:58-0.46:146:01Full Moon8Thu
9Fri11:481.28:16-0.26:136:01Full Moon9Fri
10Sat4:010.78:230.17:340.56:126:02Full Moon10Sat
11Sun12:431.01:030.88:220.48:460.36:116:03Waning Gibbous11Sun
12Mon5:040.71:071.18:060.69:580.26:106:03Waning Gibbous12Mon
13Tue1:361.411:290.16:096:04Waning Gibbous13Tue
14Wed2:121.66:076:05Waning Gibbous14Wed
15Thu2:541.62:090.06:066:05Third Quarter15Thu
16Fri3:411.73:33-0.16:056:06Third Quarter16Fri
17Sat4:331.64:25-0.16:046:06Third Quarter17Sat
18Sun5:331.65:09-0.26:026:07Third Quarter18Sun
19Mon6:421.55:46-0.26:016:08Waning Crescent19Mon
20Tue8:001.46:19-0.16:006:08Waning Crescent20Tue
21Wed9:171.46:46-0.15:596:09Waning Crescent21Wed
22Thu10:221.37:070.15:586:10Waning Crescent22Thu
23Fri2:340.97:200.26:080.85:566:10New Moon23Fri
24Sat1:561.07:220.47:070.75:556:11New Moon24Sat
25Sun12:111.11:011.17:140.57:560.55:546:11New Moon25Sun
26Mon1:170.912:511.37:040.78:420.45:536:12New Moon26Mon
27Tue1:031.59:300.35:516:13Waxing Crescent27Tue
28Wed1:251.710:310.25:506:13Waxing Crescent28Wed
29Thu1:561.85:496:14Waxing Crescent29Thu
30Fri2:341.912:370.15:486:15First Quarter30Fri
31Sat3:222.02:490.05:476:15First Quarter31Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8747437)

Common Questions About Bay Saint Louis, MS Tides

Show All
What time does the tide turn (slack tide) in Bay Saint Louis, MS today?

Slack tide in Bay Saint Louis, MS is approximately 7:07 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 80% 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 (80% 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