Tides Today & Tomorrow in Southwest Pass, Mississippi River, LA

TIDE TIMES for Monday, June 22, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 6h 47m at 4:13 pm (0.3 ft)
Next high tide (tomorrow) : 5:52 am (1.1 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 6:00 am
Moon phase : First Quarter (58% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Dec 2041

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:241.210:210.811:570.36:344:59First Quarter1Sun
2Mon7:180.811:300.56:344:59Waxing Gibbous2Mon
3Tue6:231.12:360.46:354:59Waxing Gibbous3Tue
4Wed6:231.43:210.06:364:59Waxing Gibbous4Wed
5Thu6:481.64:09-0.36:374:59Waxing Gibbous5Thu
6Fri7:241.74:57-0.56:375:00Full Moon6Fri
7Sat8:051.85:46-0.66:385:00Full Moon7Sat
8Sun8:471.86:34-0.66:395:00Full Moon8Sun
9Mon9:291.77:23-0.66:395:00Waning Gibbous9Mon
10Tue10:101.68:11-0.56:405:00Waning Gibbous10Tue
11Wed10:481.48:57-0.46:415:01Waning Gibbous11Wed
12Thu11:221.29:38-0.36:415:01Waning Gibbous12Thu
13Fri11:481.010:10-0.26:425:01Third Quarter13Fri
14Sat11:490.810:290.06:435:02Third Quarter14Sat
15Sun9:250.610:210.26:435:02Third Quarter15Sun
16Mon6:410.69:070.36:445:02Third Quarter16Mon
17Tue5:490.83:480.26:445:03Waning Crescent17Tue
18Wed5:441.03:150.06:455:03Waning Crescent18Wed
19Thu6:031.23:34-0.26:465:04Waning Crescent19Thu
20Fri6:341.34:06-0.46:465:04Waning Crescent20Fri
21Sat7:121.44:44-0.66:475:04New Moon21Sat
22Sun7:551.55:27-0.76:475:05New Moon22Sun
23Mon8:401.66:15-0.86:485:06New Moon23Mon
24Tue9:281.67:05-0.96:485:06New Moon24Tue
25Wed10:151.57:57-0.86:485:07Waxing Crescent25Wed
26Thu11:021.38:47-0.76:495:07Waxing Crescent26Thu
27Fri11:451.09:32-0.66:495:08Waxing Crescent27Fri
28Sat10:05-0.36:505:08First Quarter28Sat
29Sun12:140.78:030.410:030.06:505:09First Quarter29Sun
30Mon5:150.57:360.26:505:10First Quarter30Mon
31Tue4:480.82:17-0.16:505:10First Quarter31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8760959)

Common Questions About Southwest Pass, Mississippi River, LA Tides

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What time does the tide turn (slack tide) in Southwest Pass, Mississippi River, LA today?

Slack tide in Southwest Pass, Mississippi River, LA is approximately 11:02 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 Southwest Pass, Mississippi River, LA?

Southwest Pass, Mississippi River, LA 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 Southwest Pass, Mississippi River, LA 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 Southwest Pass, Mississippi River, LA?

Tide predictions for Southwest Pass, Mississippi River, LA 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 Southwest Pass, Mississippi River, LA?

Tide data for Southwest Pass, Mississippi River, LA is sourced from NOAA Station #8760959. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8760959.

What is the moon phase in Southwest Pass, Mississippi River, LA tonight?

Tonight the moon over Southwest Pass, Mississippi River, LA is First Quarter (58% illuminated). This places Southwest Pass, Mississippi River, LA 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