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

TIDE TIMES for Saturday, June 20, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide : 10:32 pm (0.3 ft)
Next high tide : in 47m at 12:51 pm (1.0 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 5:59 am
Moon phase : First Quarter (38% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Dec 2014

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon6:211.12:510.56:334:59Waxing Gibbous1Mon
2Tue6:231.23:130.26:344:59Waxing Gibbous2Tue
3Wed6:461.43:510.06:354:59Waxing Gibbous3Wed
4Thu7:171.54:33-0.26:364:59Full Moon4Thu
5Fri7:521.65:15-0.36:364:59Full Moon5Fri
6Sat8:281.55:56-0.36:375:00Full Moon6Sat
7Sun9:031.56:35-0.36:385:00Full Moon7Sun
8Mon9:371.47:12-0.36:385:00Waning Gibbous8Mon
9Tue10:081.37:47-0.26:395:00Waning Gibbous9Tue
10Wed10:361.28:19-0.16:405:00Waning Gibbous10Wed
11Thu10:571.08:450.06:415:01Waning Gibbous11Thu
12Fri10:580.99:020.16:415:01Third Quarter12Fri
13Sat9:290.79:000.26:425:01Third Quarter13Sat
14Sun6:440.78:220.36:435:01Third Quarter14Sun
15Mon5:500.86:120.36:435:02Third Quarter15Mon
16Tue5:430.93:330.26:445:02Waning Crescent16Tue
17Wed5:581.03:230.06:445:03Waning Crescent17Wed
18Thu6:261.23:43-0.26:455:03Waning Crescent18Thu
19Fri7:001.34:14-0.46:455:03Waning Crescent19Fri
20Sat7:391.44:51-0.56:465:04New Moon20Sat
21Sun8:211.45:32-0.66:465:04New Moon21Sun
22Mon9:041.46:17-0.66:475:05New Moon22Mon
23Tue9:481.37:02-0.66:475:05Waxing Crescent23Tue
24Wed10:311.27:47-0.56:485:06Waxing Crescent24Wed
25Thu11:090.98:27-0.46:485:06Waxing Crescent25Thu
26Fri11:280.78:54-0.26:495:07Waxing Crescent26Fri
27Sat7:220.48:520.06:495:08First Quarter27Sat
28Sun5:080.57:180.26:495:08First Quarter28Sun
29Mon4:490.72:350.06:505:09First Quarter29Mon
30Tue5:070.92:42-0.36:505:10Waxing Gibbous30Tue
31Wed5:411.03:16-0.56:505:10Waxing Gibbous31Wed
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 5:41 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 transitional phase. Tonight's moon is 38% 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 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 (38% illuminated). This places Southwest Pass, Mississippi River, LA 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