Tides Today & Tomorrow in Bay Saint Louis, MS

TIDE TIMES for Thursday, July 9, 2026
The tide is currently rising in Bay Saint Louis, MS.
Next low tide : 7:11 pm (0.1 ft)
Next high tide : in 13m at 6:53 am (1.9 ft)
Sunset today : 8:02 pm
Sunrise tomorrow : 6:02 am
Moon phase : Waning Crescent (29% illuminated)
Tide Station Location : Station #8747437
Common Questions About Tides

Bay Saint Louis, MS Tides - Jan 1993

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri5:420.96:06-0.16:545:08First Quarter1Fri
2Sat6:121.05:37-0.36:545:08First Quarter2Sat
3Sun6:541.26:00-0.56:545:09Waxing Gibbous3Sun
4Mon7:441.36:35-0.76:545:10Waxing Gibbous4Mon
5Tue8:391.47:12-0.86:545:11Waxing Gibbous5Tue
6Wed9:341.57:49-0.96:545:11Waxing Gibbous6Wed
7Thu10:241.58:24-1.06:545:12Full Moon7Thu
8Fri11:121.58:56-1.06:545:13Full Moon8Fri
9Sat11:561.39:25-0.96:545:14Full Moon9Sat
10Sun9:47-0.76:545:15Waning Gibbous10Sun
11Mon12:391.110:01-0.56:545:15Waning Gibbous11Mon
12Tue1:180.76:350.410:05-0.210:090.26:545:16Waning Gibbous12Tue
13Wed1:480.44:260.59:530.06:545:17Third Quarter13Wed
14Thu4:050.85:03-0.16:545:18Third Quarter14Thu
15Fri4:421.05:11-0.46:545:19Third Quarter15Fri
16Sat5:291.25:41-0.66:545:20Third Quarter16Sat
17Sun6:221.36:17-0.86:545:20Waning Crescent17Sun
18Mon7:211.36:53-0.96:535:21Waning Crescent18Mon
19Tue8:221.37:24-0.96:535:22Waning Crescent19Tue
20Wed9:201.37:49-0.86:535:23Waning Crescent20Wed
21Thu10:121.28:08-0.86:535:24New Moon21Thu
22Fri10:571.18:27-0.76:525:25New Moon22Fri
23Sat11:391.08:44-0.66:525:26New Moon23Sat
24Sun8:59-0.46:515:27New Moon24Sun
25Mon12:180.85:330.49:08-0.38:220.36:515:27Waxing Crescent25Mon
26Tue12:560.64:500.49:02-0.19:330.26:515:28Waxing Crescent26Tue
27Wed1:300.43:300.68:390.011:220.16:505:29Waxing Crescent27Wed
28Thu1:440.23:340.77:330.06:505:30Waxing Crescent28Thu
29Fri3:570.94:52-0.16:495:31First Quarter29Fri
30Sat4:311.04:36-0.36:485:32First Quarter30Sat
31Sun5:151.15:05-0.56:485:33First Quarter31Sun
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 1:02 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 transitional phase. Tonight's moon is 29% 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 Waning Crescent (29% 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