Tides Today & Tomorrow in Bay Saint Louis, MS

TIDE TIMES for Wednesday, July 15, 2026
The tide is currently falling in Bay Saint Louis, MS.
Next low tide : in 3h 55m at 11:23 pm (-0.2 ft)
Next high tide (tomorrow) : 1:27 pm (2.2 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 6:05 am
Moon phase : New Moon (2% illuminated)
Tide Station Location : Station #8747437
Common Questions About Tides

Bay Saint Louis, MS Tides - May 1985

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:381.36:060.56:151.06:137:35Waxing Gibbous1Wed
2Thu12:391.312:561.36:080.87:280.66:127:35Waxing Gibbous2Thu
3Fri2:581.211:32 AM1.65:551.18:250.26:117:36Full Moon3Fri
4Sat11:341.99:190.06:107:37Full Moon4Sat
5Sun12:022.210:16-0.26:107:37Full Moon5Sun
6Mon12:402.411:21-0.26:097:38Waning Gibbous6Mon
7Tue1:232.56:087:39Waning Gibbous7Tue
8Wed2:102.512:48-0.26:077:39Waning Gibbous8Wed
9Thu2:582.32:28-0.16:077:40Waning Gibbous9Thu
10Fri3:472.23:370.06:067:41Third Quarter10Fri
11Sat4:341.94:220.16:057:41Third Quarter11Sat
12Sun5:191.74:460.36:047:42Third Quarter12Sun
13Mon1:441.44:530.56:047:42Third Quarter13Mon
14Tue12:551.44:540.76:037:43Waning Crescent14Tue
15Wed12:181.44:440.97:210.86:027:44Waning Crescent15Wed
16Thu11:151.67:560.56:027:44Waning Crescent16Thu
17Fri11:011.88:310.36:017:45Waning Crescent17Fri
18Sat11:171.99:070.16:017:46New Moon18Sat
19Sun11:432.19:440.06:007:46New Moon19Sun
20Mon12:152.210:260.06:007:47New Moon20Mon
21Tue12:492.311:14-0.15:597:48New Moon21Tue
22Wed1:272.35:597:48Waxing Crescent22Wed
23Thu2:062.312:14-0.15:587:49Waxing Crescent23Thu
24Fri2:462.31:22-0.15:587:49Waxing Crescent24Fri
25Sat3:262.22:20-0.15:577:50Waxing Crescent25Sat
26Sun4:062.03:020.05:577:51First Quarter26Sun
27Mon4:431.73:310.15:577:51First Quarter27Mon
28Tue1:191.43:480.45:567:52First Quarter28Tue
29Wed12:131.33:550.68:430.95:567:52Waxing Gibbous29Wed
30Thu12:381.011:19 AM1.43:480.97:270.55:567:53Waxing Gibbous30Thu
31Fri9:551.78:060.15:557:53Waxing Gibbous31Fri
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 6:25 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 spring phase. Tonight's moon is 2% 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 New Moon (2% 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