28.9317’ N, 89.4283’ W

Southwest Pass, Mississippi River, LA

85°
H -°
L 80°
NE
11mph
High tide
12:34 am

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

TIDE TIMES for Saturday, August 29, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide (tomorrow) : 4:59 am (0.8 ft)
Next high tide (tomorrow) : in 4h 12m at 12:34 am (0.9 ft)
Sunset today : 7:22 pm
Sunrise tomorrow : 6:34 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Dec 1912

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:001.311:470.16:335:00Third Quarter1Sun
2Mon1:221.08:100.811:440.46:345:00Third Quarter2Mon
3Tue6:271.02:330.66:355:00Waning Crescent3Tue
4Wed6:071.23:020.26:365:00Waning Crescent4Wed
5Thu6:231.53:45-0.16:365:00Waning Crescent5Thu
6Fri6:531.64:27-0.36:375:00Waning Crescent6Fri
7Sat7:281.75:10-0.56:385:00New Moon7Sat
8Sun8:061.75:52-0.56:395:00New Moon8Sun
9Mon8:451.76:35-0.56:395:00New Moon9Mon
10Tue9:251.67:18-0.56:405:00Waxing Crescent10Tue
11Wed10:041.58:02-0.46:415:01Waxing Crescent11Wed
12Thu10:411.48:45-0.46:415:01Waxing Crescent12Thu
13Fri11:151.29:24-0.36:425:01Waxing Crescent13Fri
14Sat11:411.09:55-0.26:435:02Waxing Crescent14Sat
15Sun11:460.810:120.06:435:02First Quarter15Sun
16Mon9:220.610:000.26:445:02First Quarter16Mon
17Tue6:180.68:430.36:445:03First Quarter17Tue
18Wed5:290.83:380.26:455:03First Quarter18Wed
19Thu5:281.03:000.06:465:03Waxing Gibbous19Thu
20Fri5:511.23:22-0.36:465:04Waxing Gibbous20Fri
21Sat6:261.43:57-0.56:475:04Waxing Gibbous21Sat
22Sun7:101.64:41-0.76:475:05Full Moon22Sun
23Mon7:581.75:30-0.96:485:05Full Moon23Mon
24Tue8:501.76:24-1.06:485:06Full Moon24Tue
25Wed9:421.67:21-1.06:485:07Full Moon25Wed
26Thu10:341.58:17-0.96:495:07Waning Gibbous26Thu
27Fri11:231.29:09-0.76:495:08Waning Gibbous27Fri
28Sat9:51-0.56:505:08Waning Gibbous28Sat
29Sun12:050.910:11-0.26:505:09Third Quarter29Sun
30Mon12:040.55:450.49:140.16:505:10Third Quarter30Mon
31Tue4:310.72:200.16:515:10Third Quarter31Tue
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 97% 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 Full Moon (97% 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