28.9317’ N, 89.4283’ W

Southwest Pass, Mississippi River, LA

81°
H 85°
L 82°
SE
15mph
Low tide
7:36 am

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

TIDE TIMES for Monday, August 31, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 1h 05m at 7:36 am (0.7 ft)
Next high tide (tomorrow) : 12:19 am (1.4 ft)
Sunset today : 7:20 pm
Sunrise tomorrow : 6:35 am
Moon phase : Waning Gibbous (86% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Jan 1911

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:111.36:52-0.76:515:11New Moon1Sun
2Mon9:491.27:31-0.76:515:11Waxing Crescent2Mon
3Tue10:251.18:06-0.76:515:12Waxing Crescent3Tue
4Wed11:001.08:38-0.66:515:13Waxing Crescent4Wed
5Thu11:310.89:02-0.46:525:13Waxing Crescent5Thu
6Fri11:350.59:10-0.26:525:14First Quarter6Fri
7Sat5:400.38:350.06:525:15First Quarter7Sat
8Sun4:210.53:470.16:525:16First Quarter8Sun
9Mon4:200.81:57-0.36:525:16First Quarter9Mon
10Tue4:511.12:32-0.66:525:17Waxing Gibbous10Tue
11Wed5:381.33:19-0.96:525:18Waxing Gibbous11Wed
12Thu6:321.44:10-1.16:525:19Waxing Gibbous12Thu
13Fri7:301.55:05-1.26:525:20Full Moon13Fri
14Sat8:271.46:00-1.26:525:20Full Moon14Sat
15Sun9:211.36:54-1.16:525:21Full Moon15Sun
16Mon10:101.17:43-0.96:525:22Waning Gibbous16Mon
17Tue10:530.98:24-0.76:525:23Waning Gibbous17Tue
18Wed11:240.68:48-0.46:515:24Waning Gibbous18Wed
19Thu11:220.38:38-0.26:515:25Waning Gibbous19Thu
20Fri4:110.27:170.06:515:25Third Quarter20Fri
21Sat3:150.43:570.06:515:26Third Quarter21Sat
22Sun3:230.62:07-0.36:515:27Third Quarter22Sun
23Mon3:510.82:16-0.56:505:28Third Quarter23Mon
24Tue4:300.92:44-0.66:505:29Waning Crescent24Tue
25Wed5:171.03:19-0.86:505:30Waning Crescent25Wed
26Thu6:071.03:58-0.86:495:30Waning Crescent26Thu
27Fri6:581.14:38-0.96:495:31Waning Crescent27Fri
28Sat7:451.15:18-0.96:485:32New Moon28Sat
29Sun8:301.15:56-0.96:485:33New Moon29Sun
30Mon9:111.06:31-0.86:475:34New Moon30Mon
31Tue9:510.97:02-0.76:475:35New Moon31Tue
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 spring phase. Tonight's moon is 86% 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 maximum.

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 Waning Gibbous (86% illuminated). This places Southwest Pass, Mississippi River, LA in a spring tide cycle, so tidal ranges are near their weekly maximum 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