Tides Today & Tomorrow in Bay Saint Louis, MS

TIDE TIMES for Friday, June 19, 2026
The tide is currently rising in Bay Saint Louis, MS.
Next low tide (tomorrow) : 1:21 am (0.3 ft)
Next high tide : in 6h 13m at 2:54 pm (1.9 ft)
Sunset today : 8:01 pm
Sunrise tomorrow : 5:55 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8747437
Common Questions About Tides

Bay Saint Louis, MS Tides - Jul 2030

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:312.110:380.05:598:03New Moon1Mon
2Tue1:072.010:550.15:598:03New Moon2Tue
3Wed1:411.911:030.26:008:03Waxing Crescent3Wed
4Thu2:131.811:070.36:008:03Waxing Crescent4Thu
5Fri2:431.511:120.56:008:03Waxing Crescent5Fri
6Sat8:051.23:041.310:411.111:150.76:018:02First Quarter6Sat
7Sun6:341.38:350.86:018:02First Quarter7Sun
8Mon6:051.57:060.66:028:02First Quarter8Mon
9Tue6:311.77:080.36:028:02First Quarter9Tue
10Wed7:141.97:380.06:038:02Waxing Gibbous10Wed
11Thu8:092.18:18-0.26:038:02Waxing Gibbous11Thu
12Fri9:132.28:59-0.36:048:01Waxing Gibbous12Fri
13Sat10:182.39:39-0.36:048:01Full Moon13Sat
14Sun11:172.310:14-0.36:058:01Full Moon14Sun
15Mon12:082.210:39-0.16:058:00Full Moon15Mon
16Tue12:532.110:530.26:068:00Full Moon16Tue
17Wed1:331.810:580.46:078:00Waning Gibbous17Wed
18Thu2:101.610:550.66:077:59Waning Gibbous18Thu
19Fri7:131.12:421.310:281.010:350.86:087:59Waning Gibbous19Fri
20Sat4:391.33:041.012:161.06:087:58Third Quarter20Sat
21Sun4:471.57:070.76:097:58Third Quarter21Sun
22Mon5:201.77:050.56:097:57Third Quarter22Mon
23Tue6:001.87:100.46:107:57Third Quarter23Tue
24Wed6:481.97:290.26:117:56Waning Crescent24Wed
25Thu7:441.97:570.16:117:56Waning Crescent25Thu
26Fri8:492.08:280.16:127:55Waning Crescent26Fri
27Sat9:552.08:580.16:127:54Waning Crescent27Sat
28Sun10:532.19:230.16:137:54New Moon28Sun
29Mon11:412.19:430.26:147:53New Moon29Mon
30Tue12:232.09:550.36:147:52New Moon30Tue
31Wed1:021.910:000.46:157:52New Moon31Wed
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 8:07 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 transitional phase. Tonight's moon is 27% 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 Waxing Crescent (27% 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