28.9317’ N, 89.4283’ W

Southwest Pass, Mississippi River, LA

83°
H -°
L 81°
NE
2mph
High tide
3:46 am

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

TIDE TIMES for Friday, September 4, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide (tomorrow) : 3:00 pm (-0.2 ft)
Next high tide (tomorrow) : in 9h 04m at 3:46 am (2.1 ft)
Sunset today : 7:16 pm
Sunrise tomorrow : 6:37 am
Moon phase : Third Quarter (46% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Dec 1894

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat10:491.68:59-0.26:345:00Waxing Crescent1Sat
2Sun11:251.49:42-0.16:345:00Waxing Crescent2Sun
3Mon11:571.210:190.06:355:00First Quarter3Mon
4Tue10:430.16:365:00First Quarter4Tue
5Wed12:141.010:430.810:450.36:375:00First Quarter5Wed
6Thu7:070.810:020.46:375:00First Quarter6Thu
7Fri6:000.93:520.56:385:00Waxing Gibbous7Fri
8Sat5:501.12:590.26:395:00Waxing Gibbous8Sat
9Sun6:071.33:24-0.16:405:00Waxing Gibbous9Sun
10Mon6:381.54:02-0.46:405:01Waxing Gibbous10Mon
11Tue7:201.74:47-0.66:415:01Full Moon11Tue
12Wed8:071.85:39-0.76:425:01Full Moon12Wed
13Thu8:591.96:36-0.86:425:01Full Moon13Thu
14Fri9:521.87:35-0.96:435:02Waning Gibbous14Fri
15Sat10:441.78:35-0.86:445:02Waning Gibbous15Sat
16Sun11:341.49:30-0.66:445:02Waning Gibbous16Sun
17Mon10:16-0.46:455:03Third Quarter17Mon
18Tue12:171.110:42-0.16:455:03Third Quarter18Tue
19Wed12:170.76:480.510:090.26:465:04Third Quarter19Wed
20Thu5:120.82:510.26:465:04Third Quarter20Thu
21Fri5:061.02:43-0.16:475:05Waning Crescent21Fri
22Sat5:301.23:17-0.46:475:05Waning Crescent22Sat
23Sun6:051.43:55-0.66:485:06Waning Crescent23Sun
24Mon6:441.44:34-0.76:485:06Waning Crescent24Mon
25Tue7:241.45:12-0.86:495:07New Moon25Tue
26Wed8:051.45:51-0.86:495:07New Moon26Wed
27Thu8:451.36:30-0.76:495:08New Moon27Thu
28Fri9:241.37:09-0.76:505:09New Moon28Fri
29Sat9:591.27:45-0.66:505:09Waxing Crescent29Sat
30Sun10:321.08:18-0.56:505:10Waxing Crescent30Sun
31Mon10:590.88:43-0.46:515:11Waxing Crescent31Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8760959)

Common Questions About Southwest Pass, Mississippi River, LA Tides

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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 46% 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 Third Quarter (46% 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