28.9317’ N, 89.4283’ W

Southwest Pass, Mississippi River, LA

87°
H -°
L 81°
NW
4mph
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 11h 27m 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 - Sep 1895

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:071.74:570.35:356:19Waxing Gibbous1Sun
2Mon7:571.65:210.45:356:18Full Moon2Mon
3Tue8:421.55:310.65:366:17Full Moon3Tue
4Wed9:271.45:210.75:366:16Full Moon4Wed
5Thu10:171.210:531.04:400.95:376:15Full Moon5Thu
6Fri11:281.110:391.24:070.93:171.05:376:13Waning Gibbous6Fri
7Sat10:511.46:070.85:386:12Waning Gibbous7Sat
8Sun11:181.68:020.65:386:11Waning Gibbous8Sun
9Mon11:561.79:420.55:396:10Waning Gibbous9Mon
10Tue11:000.35:396:09Third Quarter10Tue
11Wed12:451.912:050.25:406:08Third Quarter11Wed
12Thu1:452.01:050.15:406:06Third Quarter12Thu
13Fri2:572.02:010.05:416:05Third Quarter13Fri
14Sat4:162.12:540.05:416:04Waning Crescent14Sat
15Sun5:372.13:450.15:426:03Waning Crescent15Sun
16Mon6:572.04:320.35:426:01Waning Crescent16Mon
17Tue8:191.85:120.65:436:00New Moon17Tue
18Wed9:531.610:001.05:260.95:435:59New Moon18Wed
19Thu12:121.33:010.83:571.35:445:58New Moon19Thu
20Fri9:311.75:160.65:445:57Waxing Crescent20Fri
21Sat10:121.97:070.45:455:55Waxing Crescent21Sat
22Sun11:002.18:440.35:465:54Waxing Crescent22Sun
23Mon11:522.110:100.25:465:53Waxing Crescent23Mon
24Tue11:250.15:475:52First Quarter24Tue
25Wed12:512.112:310.25:475:51First Quarter25Wed
26Thu1:562.01:290.25:485:49First Quarter26Thu
27Fri3:111.92:180.35:485:48First Quarter27Fri
28Sat4:311.82:580.55:495:47Waxing Gibbous28Sat
29Sun5:501.73:280.65:495:46Waxing Gibbous29Sun
30Mon7:021.63:460.85:505:45Waxing Gibbous30Mon
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