Tides Today & Tomorrow in Bay Saint Louis, MS

TIDE TIMES for Tuesday, July 28, 2026
The tide is currently rising in Bay Saint Louis, MS.
Next low tide : 9:57 pm (0.0 ft)
Next high tide : in 10h 34m at 11:27 am (2.2 ft)
Sunset today : 7:54 pm
Sunrise tomorrow : 6:13 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #8747437
Common Questions About Tides

Bay Saint Louis, MS Tides - Jan 1972

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat11:161.59:31-0.96:535:07Full Moon1Sat
2Sun11:591.39:57-0.86:545:08Waning Gibbous2Sun
3Mon10:14-0.66:545:08Waning Gibbous3Mon
4Tue12:371.110:23-0.46:545:09Waning Gibbous4Tue
5Wed1:120.87:320.510:23-0.210:050.46:545:10Waning Gibbous5Wed
6Thu1:390.56:270.59:560.06:545:11Third Quarter6Thu
7Fri4:500.77:510.06:545:11Third Quarter7Fri
8Sat5:020.95:58-0.16:545:12Third Quarter8Sat
9Sun5:311.05:02-0.36:555:13Third Quarter9Sun
10Mon6:111.25:26-0.66:555:14Waning Crescent10Mon
11Tue6:591.36:06-0.76:555:15Waning Crescent11Tue
12Wed7:561.36:49-0.86:545:16Waning Crescent12Wed
13Thu8:551.47:31-0.96:545:16Waning Crescent13Thu
14Fri9:491.58:08-1.06:545:17New Moon14Fri
15Sat10:371.58:41-1.06:545:18New Moon15Sat
16Sun11:201.49:08-1.06:545:19New Moon16Sun
17Mon9:27-0.86:545:20New Moon17Mon
18Tue12:011.39:38-0.76:545:21Waxing Crescent18Tue
19Wed12:421.09:43-0.46:535:21Waxing Crescent19Wed
20Thu1:220.75:500.49:42-0.210:090.26:535:22Waxing Crescent20Thu
21Fri1:590.33:500.69:250.06:535:23First Quarter21Fri
22Sat3:560.94:35-0.16:535:24First Quarter22Sat
23Sun4:311.24:29-0.46:525:25First Quarter23Sun
24Mon5:191.35:10-0.76:525:26First Quarter24Mon
25Tue6:151.45:59-0.96:515:27Waxing Gibbous25Tue
26Wed7:201.56:48-1.16:515:28Waxing Gibbous26Wed
27Thu8:281.57:32-1.16:515:28Waxing Gibbous27Thu
28Fri9:321.48:07-1.06:505:29Full Moon28Fri
29Sat10:251.38:31-0.96:505:30Full Moon29Sat
30Sun11:111.28:44-0.76:495:31Full Moon30Sun
31Mon11:510.98:53-0.56:485:32Full Moon31Mon
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 4:42 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 99% 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 Full Moon (99% 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