Tides Today & Tomorrow in Bay Saint Louis, MS

TIDE TIMES for Monday, June 22, 2026
The tide is currently falling in Bay Saint Louis, MS.
Next low tide : in 10h 56m at 8:22 pm (0.6 ft)
Next high tide (tomorrow) : 6:58 am (1.5 ft)
Sunset today : 8:02 pm
Sunrise tomorrow : 5:56 am
Moon phase : First Quarter (58% illuminated)
Tide Station Location : Station #8747437
Common Questions About Tides

Bay Saint Louis, MS Tides - May 2017

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon3:202.12:270.06:137:35First Quarter1Mon
2Tue4:082.03:480.16:127:35First Quarter2Tue
3Wed4:561.74:380.26:117:36First Quarter3Wed
4Thu5:431.55:020.46:107:37First Quarter4Thu
5Fri1:201.35:070.66:097:37Waxing Gibbous5Fri
6Sat1:081.45:100.810:111.06:097:38Waxing Gibbous6Sat
7Sun1:211.012:501.45:110.97:300.76:087:39Waxing Gibbous7Sun
8Mon11:361.58:100.56:077:39Waxing Gibbous8Mon
9Tue11:331.78:480.46:067:40Full Moon9Tue
10Wed11:561.99:260.36:067:41Full Moon10Wed
11Thu12:252.010:050.26:057:41Full Moon11Thu
12Fri12:562.010:470.26:047:42Full Moon12Fri
13Sat1:292.111:330.26:047:43Waning Gibbous13Sat
14Sun2:022.16:037:43Waning Gibbous14Sun
15Mon2:362.012:310.26:027:44Waning Gibbous15Mon
16Tue3:092.01:380.26:027:45Waning Gibbous16Tue
17Wed3:421.92:380.36:017:45Third Quarter17Wed
18Thu4:111.73:200.36:017:46Third Quarter18Thu
19Fri4:241.53:480.46:007:47Third Quarter19Fri
20Sat12:501.44:020.66:007:47Third Quarter20Sat
21Sun12:261.44:100.78:210.95:597:48Waning Crescent21Sun
22Mon12:411.012:031.44:180.97:330.65:597:48Waning Crescent22Mon
23Tue11:071.68:100.35:587:49Waning Crescent23Tue
24Wed11:091.88:530.15:587:50New Moon24Wed
25Thu11:372.09:41-0.15:577:50New Moon25Thu
26Fri12:132.210:32-0.25:577:51New Moon26Fri
27Sat12:542.311:28-0.25:577:51Waxing Crescent27Sat
28Sun1:362.35:567:52Waxing Crescent28Sun
29Mon2:192.212:31-0.15:567:53Waxing Crescent29Mon
30Tue3:012.01:360.05:567:53Waxing Crescent30Tue
31Wed3:401.82:260.25:557:54First Quarter31Wed
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 1:40 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 neap phase. Tonight's moon is 58% 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 minimum.

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 First Quarter (58% illuminated). This places Bay Saint Louis, MS in a neap tide cycle, so tidal ranges are near their weekly minimum 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