28.9317’ N, 89.4283’ W

Southwest Pass, Mississippi River, LA

85°
H -°
L 80°
E
17mph
High tide
12:08 am

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

TIDE TIMES for Sunday, August 30, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide (tomorrow) : 7:36 am (0.7 ft)
Next high tide (tomorrow) : in 5h 21m at 12:08 am (1.2 ft)
Sunset today : 7:21 pm
Sunrise tomorrow : 6:34 am
Moon phase : Waning Gibbous (93% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Sep 1911

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri2:141.71:380.15:346:20First Quarter1Fri
2Sat3:151.72:270.15:356:19Waxing Gibbous2Sat
3Sun4:241.83:140.15:356:18Waxing Gibbous3Sun
4Mon5:311.83:570.15:366:17Waxing Gibbous4Mon
5Tue6:331.84:350.25:376:16Waxing Gibbous5Tue
6Wed7:261.85:070.35:376:15Waxing Gibbous6Wed
7Thu8:161.75:300.45:386:13Full Moon7Thu
8Fri9:051.65:410.65:386:12Full Moon8Fri
9Sat9:591.411:451.05:310.85:396:11Full Moon9Sat
10Sun11:131.210:571.22:570.94:391.05:396:10Waning Gibbous10Sun
11Mon10:591.45:370.85:406:09Waning Gibbous11Mon
12Tue11:251.77:550.65:406:07Waning Gibbous12Tue
13Wed9:480.45:416:06Waning Gibbous13Wed
14Thu12:061.911:120.25:416:05Third Quarter14Thu
15Fri1:002.012:240.05:426:04Third Quarter15Fri
16Sat2:072.11:280.05:426:03Third Quarter16Sat
17Sun3:242.12:280.05:436:01Waning Crescent17Sun
18Mon4:482.13:240.05:436:00Waning Crescent18Mon
19Tue6:102.04:130.25:445:59Waning Crescent19Tue
20Wed7:271.94:540.45:445:58Waning Crescent20Wed
21Thu8:411.75:190.75:455:57New Moon21Thu
22Fri9:581.510:211.15:051.05:455:55New Moon22Fri
23Sat11:431.39:431.33:170.93:311.25:465:54New Moon23Sat
24Sun9:531.55:180.85:465:53Waxing Crescent24Sun
25Mon10:171.76:530.75:475:52Waxing Crescent25Mon
26Tue10:491.88:170.65:475:50Waxing Crescent26Tue
27Wed11:261.99:310.55:485:49Waxing Crescent27Wed
28Thu10:400.45:485:48First Quarter28Thu
29Fri12:111.911:440.45:495:47First Quarter29Fri
30Sat1:061.912:430.45:495:46First Quarter30Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8760959)

Common Questions About Southwest Pass, Mississippi River, LA Tides

Collapse All
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 93% 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 (93% 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